I started using jonnysunshine on reddit for one reason. To see how much karma I could generate with my submissions. It's a fun experiment to be sure. In just two months, with just a small amount of submissions I've garnered a fair amount of karma. I've only posted content that I found compelling to me, that was sfw, and relevant to the subreddits I posted in.
I don't doubt that powerusers jumped ship, or were forced out, when things get a bit heated. Apparently, some had issues with the admins, some didn't. Some were raked over the proverbial coals, some weren't.
Be that as it may, there's one thing that brings most of us here - the opportunity to participate on a site that has similarities to reddit, but is vastly different as well. I look forward to seeing the progress of hubski as it grows and changes shape as all sites likely do.
It should be an interesting ride to say the least.