I'll miss G+. I found plenty of good people to follow, including yourself. Now I have to migrate elsewhere to get the same feed. G+ had no ads and I think the user interface is one of the best. I agree about Steemit re-steem. I want to say why I shared a post. Steemit is really better for longer posts, but I may need something else for short ones and where I just want to share a link. Not sure what that will be yet. Looking at Diaspora and Friendica. May give Mastodon another go, but these things eat time.
You do know why it's called Dire Spora don't you? ;-)
I've heard rumours, but I've not been there in a while. None of these things is essential. I say we should go back and use RSS. I still read a lot of blogs that way.
I'm no longer a FOSS sponge like I used to be. I used to spend hours trawling all the feeds making sure I was 'up to speed' on everything, these days I'm constantly reactive rather than proactive.
I used to keep up with that stuff, but these days things 'just work' and I'm not always waiting for new releases. I'm still interested in innovative stuff, but I'm lacking time to play with it all.