I dont think its so active at least not topics i'm most interested in. Privacy has only one lemmy instance that is active. Security has only 1 instance but no one ever discusses there, it's just sharing Security news and 0 comments. Talk about crypto is pretty much completely dead as well which is strange.
More crypto discussions in general and I don't mean cryptography. I think because of those topics being almost dead here, it would be good to just have 1 crypto community instead of having different communities for every different blockchain/topic. Or maybe 2 communities to seperate shilling and speculating price from technological and political crypto discussions.