I’ve noticed myself and others getting downvoted for mentioning lemmy. Other posts mentioning discord or whatever just get ignored.
I don’t think it helps to go looking for arguments though. Some people will stay on Reddit. Some will leave. Que sera, sera.
DepthHub & RBI were good at times.
Although the obvious answer for me is the already niche subs on Reddit for software/TV shows which have just a few hundred people there. There’d be 10 people at absolute max on here and the community would not last.