I've noticed it too. I've also noticed that many of them are continually asking for "feedback" on supposed hubs they created. Still, a majority of them are clogging up the discussions with general of vague questions. It's possible that it's a scheme; in fact, one thought that came to mind was that there was a large group who posted crappy articles and comments on Bubblews (Yeah, I know people posting crap on Bubblews is not news) in an attempt to get as many clicks and followers on that site (before that site started stiffing its users, they had very generous payouts).
Don't know if they are trying to pull the same stunt here. But, I'm wary of their actions.