Rhokk - white out works :P

I agree with Raist on this one. It happened back on AT. It was pure Siege ruleset where reds could come into town if they didn't commit crimes, etc. Eventually people started bitchin' about the blue twinks so Raist fixed it: no reds in blue towns.

The solution to your problem: either adapt to the situation/environment or stay away from the areas where this could be abused.