There were no other active posts on GD at the time. The first Btag request megathread was deleted, but no action was taken to stop a second version. The second version was unlisted and closed after it got close to 15k responses. The third version seemed to be relatively civil, despite the fact that generally the same handful of people did their best to derail it and provoke toxicity specifically to get it shut down, and it was deleted over the weekend. A fourth version went up and was deleted a day after.
None of those threads overlapped. The request for Btags to be used as a unique identifier on the forums with people’s posts in the hopes that it would help discourage trolling and sockpuppeting, give people greater controls over ignoring people they didn’t want to hear from and make moderation easier and more consistent isn’t much different from requests that Worgen have tails or that the game get a High Elf race. There was only ever one “megathread” up at a time (although there were at some points several “Don’t use Btags on the forums” threads that were all eventually taken down to consolidate the discussion to one post).
If the topic isn’t allowed to be discussed anymore, it would be appreciated that we have some clarity on the matter. But I don’t personally see why support for solutions to make the WoW forums friendlier and more useable is a verboten topic unless it’s intended that a few people should be able to shut down really any topic of discussion by consistently hammering any posts that come up on the subject with purposeful misinformation to provoke an argument.