Not saying it's not a problem, Guest. But we have been the victims (collectively) of 1,001 anonymous guests starting and/or fanning horrific flame wars. Anonymity appears to give certain people (at least in their own minds) a license to do things and say things they would never say if their identity were known.Thus, guests that zoom in and say critical things are treated pretty roughly.
If you don't want to be lumped into that group, it's easy enough to sign up and not be a guest any more. So easy, in fact, that members are very suspicious of anybody who won't.
Alex