Kind of expanding on Jabba here
A re-test is only viable now because of how balanced everything is and how little shifts there are. This gives us an ideal clean slate to test the brokenness of previously borderline Pokemon.
Many of us are advocating a re-test because it gives UU players something to do, could make the metagame more fun to play in, and could possibly introduce new, non-broken members to it. That is all.
I don't particularly understand the level of opposition to this. It's apparent that, at least for some of the older BL candidates, the metagame has changed substantially since they were banned. It is equal apparent that a number of prominent players would like for this to go through (and some other prominent players would not but hey, that's what discussion is for).
tldr I agree with LR it makes sense from both a competitive perspective and a "we play this game for fun" perspective to seriously explore the possibility of a retest.
I cut some stuff here to make it easier to see what I wanna refer to here, but the bold is most of what I want to comment on.
From a pure fun standpoint I would love to test some of the suspects again, but being around as long as I have has made me nothing if not cynical, so let me make one thing obvious if it isn't already:
changing the UU tier banlist because it might be fun is not a good enough reason.* I don't want it to look like I'm just picking on your diction here, but LR mentioned "fun" an awful lot and I think a lot of why so many people want to do this is boredom due to the stagnation within the tier. Potentially fun or no, you have to look at this with some perspective - there are more people playing this metagame than just the people posting on this forum. Our UU banlist is pretty much the list for the internet as a whole these days, and is certainly the list for other parts of Smogon - like the other hundreds of people on the UU ladder other than us, and the various tournaments on the site that include UU. The point being that generally none of these parties are in favor of having to constantly adjust to a new metagame(UU was always intended to stabilize). It's not like a retest is itself is necessarily impossible, but I feel like a lot of why people want to do this is because they've become accustomed to an ever-changing metagame and want to be entertained, rather than because they honestly think the metagame would be improved by some changes. We have to make any changes we make in this metagame, be it votes on suspects or decisions on drop-downs for the good of the the metagame; the decisions effect a large amount of people.
The other part of doing any sort of suspect testing right now is the proximity to the official tournaments(and gen 5, on some level). I think the two official tournaments that use UU is probably the part of the Smogon machine most effected by what we do here(and thus the part we'd most need to be able to clear stuff with): the SPL and the Smogon Tours. SPL is in the finals presently, so it is a non-factor, but we're about exactly a month away from a new season of the Tour. I suspect Aeolus would not want us changing tiers in the middle of this season, since even if he kept the Tour rules as they were at the beginning of the season, players wold have nowhere to test. As such, we'd have like a month to do anything, which is probably not enough time to give a fair test. The end of the tour would bring us right up to like early November, and with Gen 5 already out at that point(though there won't be sims then), I'm not sure if we'd be able to get enough interest for a reasonable test.
Anyway, I guess my point is that unless there's an amazing system that takes under a month to execute and the reason for doing so is metagame improvement centric, nothing is going to happen. Suggestions really need to be in the vein of "X would fit into a balanced metagame now when it did not before because..." in regards to Pokemon(LR made a good case for Crobat in this vein), and a system of some sort to test needs to be implemented. Ignoring probable red tape with Banedon's idea due to the fact there's a waiting list longer than the Hot Girls thread to open a tournament these days I think he has an interesting thought there, since you could just do it Swiss so everyone is playing every round.
The other half of the fact this issue is that these Pokemon are all banned right now because they were voted to BL by people who played well in whichever period they were banned in, and by lowering them we're disregarding their opinion on some level. There's a certain sense of fairness, for lack of a more precise word, we then need to apply to the suspects and the people who voted for them. I'd wager a majority of the people who voted these pokemon BL have not changed their opinions, so you would need a reasonably compelling case to go against their votes and the voting process in general - it's not like we just did it to do it, we did it to get a balanced metagame, and that
actually happened. It might not be the most desirable metagame possible in some of our eyes, but we did hit that goal, so a case would need to be made about why it is reasonably probable that by shaking things back up we'd end up with a better game than we have now.
I'm also really not sure how to be reasonable about Pokemon that should or shouldn't be retested. Like Gon-z's Cress argument, for instance - I thought Gon-Z was a lot worse than Cress that period and I voted it BL, so the lack of it wouldn't have changed my vote any. I don't mean this as a IT'D HURT MY FEELINGS argument, but rather that these were all voted BL for a variety of reasons, that there were a variety of factors for each of them beyond what we might note here. It's not worth it to go against months of work by dropping them back down unless there's a realistic chance that they're actually going to fit into UU this time, and there's invariably going to be a lot of people who both agree and disagree with each suspect's probability of fitting in. I mean, hell, look at Raikou and Honchkrow in this topic, I bet we'd end up damn near 50/50 on whether or not it'd be worth it to test them in if everyone was being realistic, and in that split you've kinda gotta go with precedent, since we did have those votes for a reason. I'd personally enjoy seeing both retested, since I never thought either were BL to begin with(though I begrudgingly accepted Raikou, sort of), but there are a lot of you who never want to see them again, and with the votes you've earned the right to that.
I think the only one that will likely gain an obvious majority is Crobat, since he has a little less obvious power and was tested and banned before most of the people who post on this forum were playing UU. I don't really have anything to say about it beyond that at the moment.
I realize I'm not typing what you guys want to read in this post or in my last one but this is very much the truth of things. A certain level of pragmatism is going to be necessary here.
*I do want to clarify that I mean it's not good enough for it to be "fun to test," rather than "the metagame could be more fun if we had suspects permanently back in it," which would be a metagame improvement.