I've noticed some providers posting the same posts and survey-type questions on several different discussion boards simultaneously (i.e. regionals and general/national).  I'll see a provider post some inane thing like "Do you prefer blondes or brunettes?", go to another regional board or the national board, and see the same question.  I think such posts are designed to loop around the advertising restrictions.  I think it's tacky and a policy should be enforced to limit such transparent spamming tactics.