I have not seen any spamming (at least not on the turnip patch) by such posters/"for pay service providers", I really do not think we should be too tough with them. If people want to subscribe, let them do their due diligence, they may want to condition payments on verifiable records as LG suggest, but I do not think it is I-hub's job to police them, nor to "tag" them in various colors as if they were engaged in some "criminal activity". They are trying to make a living and if they do not step on anyone's toes, why not let them be?