Putting a band aid on a sucking chest wound will not stop the wound from sucking air. Blocking the Gil seller spam directed at individuals will not stop the Gil seller from sending that spam out.

If you want to get rid of the spam, you *have to make selling Gil an uneconomical proposition*. You HAVE to remove all profitability from the sale of Gil in order to get them to leave. Anything less will not solve the problem. The tells are not the problem - the people controlling the bots sending the tells are.