Buff / nerf threads are just a form of expressing thoughts. Just because someone else calls for discussion on the same topic with obligatory "this is not buff/nerf thread" PSA doesn't mean it's something else in essence.
If people disagree with OP, they will start a discussion anyway.
At this point some things are pretty clear though and opinions on them are unlikely to change, but the best way to determine it is to discuss and play out this stuff instead of looking at arbitrary dates in calendar. In this sense, these threads may be pretty useful.