I basically only upvote when I like something but do not want to comment.

Everyone has a happy place. To me it is 3D printing and lutherie.

I think it would be cool to have instances that are the equivalent of a subreddit. Okay, perhaps not THAT granular.

I think it is useful to categorize around broad themes. Technology, Nature, Music, Art, Philosophy, etc. Somewhere in the middle is probably the most attractive.

Lemmy is still early enough that nothing has been made de facto. Yes, it is replicating the format of Reddit, but since it is federated, subjects will be naturally duplicated and fractured. That can be good, the best will rise and the rest will fade out. Lemmy can be an improvement instead of an echo of a dying phenomenon riddled with flaws.