This post doesn't directly affect kbin.social users, but it is relevant. It discusses some of the potential pros/cons of Kbin and the pros/cons of Mbin, and also the direction the kbin.earth server is heading.
I've been curious about trying out mbin, and this seems like a good instance to do it on. So I absolutely like option 2 the best.
That said, I tried to sign up earlier today, and never received the registration email. Tried to sign up with an old Gmail account. Might be worth looking into. :)
Sorry about that, and thanks for letting me know. I had no idea the email system was down. I'll probably try to look into it after the migration to Mbin. I've gone ahead and manually verified each user from the past week, so you should be able to sign in now.
Sounds good! Migration probably won't happen today, but maybe tomorrow or the day after if we get lucky. Unfortunately, I ran into a problem while trying to set up Mbin due to one of the mbin/kbin dependencies suddenly disappearing out of the blue (see here).