What software/provider is it? I would like to make a plea for my innocence.
No idea. It's a generic Bluecoat message. No indication which filter engine this is coming from.
No "commercial provider" per se. I'm on Internet2/X-WiN via the company proxy.
I wouldn't worry about it, I believe it is a localized issue (I have privileges with two Internet2 backbone participates and neither showed an issue). Also online threat advisory sites (even ones known to give false readings) all gave either a completely clean bill of health or marked the site as well as the external links as "benign" (which is equivalent). I didn't bother going deeper than the main page but it seems like it might be mishitting a random rule or perhaps some social elements cause issues (heck it could just be word context, I've seen some oddly built filters in my time).
Also I didn't know moderators got paid; probably for the best in most cases (it's very easy to burn yourself out with such a task).
. 
. Perhaps they did a deep scan of my MinePeon images and worked out there is a copy of cgminer in there, that get flagged all the time (feel the sarcasm in that one