If that's true, I think calling it unprofessional is being kind, as 3I themselves were telling people to mine elsewhere until everything got sorted out.
I don't think so.
I was mining there, then I switched, then I came back until BigZim said to switch. I got paid on 4/6 and 4/7 (which are the first links) then I got paid yesterday for everything else (last link above). I had about 5k in total. Got everything I was due.
Those who are crying, maybe they were short changed, maybe they are a bit confused, maybe both. But BigZim isn't a scammer or thief. His pool grew larger than he could manage. But he did help get Raven going, so don't hate on him.