I think this moved beyond forged posts to something else -- google for HipCrime. I've seen this happen in a lot of other groups, some of them that ended up unusable afterwards, because of the massive pollution of the group with gibberish.
Things like this can only be driven by someone with WAY too much time on their hands, and a pathetic and desperate need for attention. I just hope it doesn't destroy this group as it has other good groups in the past.