Merc runs shouldn't be a bannable offense. They should be a shame-able one. If the community refuses to accept that as a standard and castigates people offering it and buying it then it will go underground as a minor niche service instead of becoming a standard thing to see. The problem is that the community overall has to establish some idea of acceptable action and so far we haven't got that. Give it a couple more weeks until the "1st month free" people disappear and then start working to create the community you want.