My only concern is that I don't want to see the site overwhelmed by any particular interest group/clique/whatever you want to call it.
There's definitely an extreme left wing group here (one largely reliant on just reposting "excerpts" from other left wing sites). Similarly, there are a handful of extreme right wing people too but they're not nearly as pervasive.
There's no way I'd allow this site to end up as some sort of lunatic bin ala Democraticunderground.com. Anymore than I'd allow this site to end up as some sort of placard of right wing nuts. So I do have some concerns but nothing too significant yet.
I am finding it easier to ignore some of the rubbish posted though than at first. When I see a post full of statistics of which half of them come from left-wing special interest groups I resist the temptation to go through and walk them through the backgrounds of those groups. It's just not worth the time.