It ignores all NSFW communities. I'm planning on adding a switch for that, but if you really want, you can change nsfwFilter property in local storage through devtools. all is for everything, none is for no NSFW and only is for only NSFW communities.
Sometimes it fails to follow a community. Maybe it's because community is not yet "synced" to the instance you logged in from. Don't know much about exact reason, because I'm new to lemmy from the tech side.
There is also a planned feature to exclude whole instances. Currently only possible with editing local storage.
Looks neat I'll check it out. Would be cool if you could login and it would pull your subscribed communities and then come up with similar communities based on already subbed ones. Cheers.
I'd love to do that, but that would require me having info on all users' followed communities. Then I could cluster communities based on shared subscribed users and actually recommend communities. Basically if user A follows X, Y and Z, user B follows X, Y and Z and you follow X, then you might be interested in Y and Z.
Or some simple alternative would be to tag communities, but again someone would have to do it.
The Fediverse population seems generally quite hostile towards algorithms, but i would love something like that. Discoverability is a huge issue on Lemmy right now. Apart from searching on lemmyverse.net/communities, we basically only have !trendingcommunities@feddit.nl