There's a LOT of trolls and fake accounts, I could easily see a few people being involved. Pretty sure Nina just caught another of juice's, right?
I'd say there is a 100% chance that Dougster is behind at least one or more of these. There's no such thing as a guy investing so much of himself trolling on a website, seemingly on at all hours, and then just disappearing. Every article about internet trolls paints the same picture; Dougster just decided to retire his "dougster" persona for a while. Absolutely no chance he's gone.
But, I'd guess there's a few people behind these. Maybe lots -- at least one person has told me in DM "I'm the so-and-so troll", maybe lots of guys are having fun at this point