That is a very good question that I’m glad somebody asked. The lemmy.world community (I modded there too) discourages posts that are about the PS5 & PSVR 2 and is more about the older systems.
I want this community to be a one stop shop for all of the PlayStation consoles and games.
As for the KBin PlayStation community they don’t allow self promotion. I plan on allowing self promotion in a weekly pinned post if there’s demand for it.
I hope that answers your question and it would be great if you joined the community.