Sth,
I had the very same problem when I attempted to post on the Falcon Oil Hub. I own over 100k shares of the company and actually was simply asking some questions to the reputedly much better informed members than me. I was immediately taken down. I never posted there again. The main problem is that several of the Hubs I have visited are places where, for the most part, never is heard a discouraging word. We had an extensive discussion concerning these issues in previous posts on this Hub. I think that you should send a PM directly to George and ask him to send a note to the Hub Leaders about your concerns. If you want Agoracom to respond to your posts you should post them as flagged questions.
Good luck. I now only post on three of the numerous Hubs I visit on a regular basis.
Doc