I had a good group of friends use it and that made it really fun. I remember the product itself being great initially. It just never gained any users.

Twitter’s Circles function much the same as Google+’s did. It was a really great feature. Seems like it’s on Twitter’s chopping block now.

This is exactly it

There’s a lot of good info already in here. I’d also recommend checking out the trending post tab, that’s where you’ll typically find some of the posters with the highest number of followers (“hubs” in the Mastodon zeitgeist). I’d also recommend that you follow Lisa Melton https://mastodon.social/@lisamelton. She boosts a ton of stuff and almost single-handedly acts like Mastodon’s algorithm. Her boosts will give you lots of cool accounts to follow, and at the very least will populate your timeline.

Just did, thanks for the recommendation!

If he’s referring to Lemmy.world he’s wrong. Lemmy.world has a different admin who’s not connected at all to Lemmy.ml admins afaik