Well you can report it and it will probably get baleeted or moved to /qa/, which anons who post in these threads seem to like even less.
You can't make people avoid meta discussion if they have a big enough axe to grind. Just wish that energy actually manifested in a spinoff most of them could enjoy.
t. browses other imageboards as well. One is a KC spinoff that isn't kohlchan, one is a comfy /a/ spinoff, one is 420chan, and one is uboachan, to name a few. I'm happy with that.