Considering that the main bloat of the chain is english language text it damn well better compress. And considering that it didn't start making a blog until, what was it, 2018? and a tiny userbase, it won't be as big as bitcoin.

Lightning isn't providing the forum, it's just payment rails. This application is just a lightning wallet with a forum attached.

Most importantly, there is no downvote, you tip, or not. No stealing from your brothers.