For me, I have a nice Twitter feed. Really nice, lots of good people and it makes me happy. Nearly none of them are on Mastodon so I'm having a hard time doing this anew. I expect a lot of those folks will have a hard time moving to Mastodon, but some have left for Instagram. Not the same. I have found a lot of the same forums from Reddit here, and some are empty so I hope to help populate.