I'm also open the possibility I'll adjust to this format and end up preferring it. Although, I created a thread yesterday where it's own topic actually made sense and someone came in immediately criticizing it. My current position is misc did not merge threads enough, while this forum over-indexes on it (or over-generalizes might be a better framing).
It wasn't always like that here, but I'm not sure when things changed.
I remember there being a ton of short 'spam' topics 20 or so years ago. Some posted by bored people trolling, some legit. But there were more threads, and enough activity at times that things scrolled off of their respective 1st pages frequently.
We've always had some megathreads, though, at least as far back as I can remember. Like Screenshots, PGT, etc
You can always post new threads. Feel free. But there's also...it's almost a tradition anymore...to immediately jump into a new thread and say something like "TO THE RICKSHAW!". Because back when there were so many spam threads, the dumbest threads got moved to the Rickshaw and the OPs kind of got shamed for it. So it doesn't necessarily mean that the thread has no value...it's just old bloods trying to be funny. If your thread is legit, then just power through it. And if you post a thread that's pertinent to the BB posters, they can just post in it and ignore the people panning it. They'll get bored and move on.
There's also the Ask AMOD thread if you have an actual complaint (if it's stupid you will probably be trolled) or if you just feel like mildly trolling LRR and the AMODs by starting stupid discussions in there.
Obviously, keep the NSFW and (serious) trolling to the NSFW portion of the forums.
Also, don't post music videos in the POL thread. No idea why that's such a hard line but whatever. I'm half tempted to go post now, myself, just to be a dick, LOL