I agree with some of the points of the original thread:

• having Twitter clone or Instagram clone but decentralized kinda sucks no matter how you put it and it’s probably not mass sustainable

On the other hand… Lemmy is just a forum that can connect to other forums. You don’t find cool subreddits searching for them, the good ones are the ones recommended by other people, usually not by search. The fediverse actually suffers from having a big user base that wants Reddit/twitter/insta but decentralized instead of having small forums/microblogs connected to each other. Also the reason why you see me often advocating for less “generalized instances” and wanting more vertical focused ones. This is easily possible with lemmy dividing by topic and with mastodon dividing by localization.

If you want the fedi to thrive, build lemmy instances focused on being a stand alone forum first and mastodon ones focused on being local first (same for mobilizon)