I think it's evidence that the kind of crowd that's interested in Bitcoin has strong opinions about politics and therefore political debate is inevitable. Therefore, it makes more sense to give it a place to happen rather than having it sprinkled all over the forum. A moderator can now come along and split the thread, moving the political debate posts to the proper section. That's pretty much why the politics section got started in the first place.
Perhaps the crowd could be kindly informed that there is a different location outside the bonds of bitcoin.org domain that is more suited to this kind of discussion?
Like, a
HUGE HONKING BANNER saying that these forums are for project technical discussion and tech support (incl merchant support), accompanied by
HUGE HONKING LINK to a site which is not directly affiliated with bitcoin per se and is willing to support exactly this kind of discourse due to having a strong incentive to maintain niche appeal of a certain "anarchist-ish" type?