You know who the car owners are. The members(s) in question may not even read Talk forums. This is not the way to handle it.
A parable from a leadership class I once had:
A Manager had the same one or two employee always come in late on Mondays. He knows who they are because he sees them come in from his office, and their time cards are stamped. The other employees know who they are because…employees. The Manager sends out a memo: “It has come to my attention that some of you are coming in late sometimes. Please refrain form this activity”. One of the two perennially tardy employees scratches her head and thinks “hmmmm…he didn’t mention me specifically, he must not mean me”. The other one smiles his sneaky smile and thinks “my chicken-shit manager is too chicken-shit to confront me…I’ll just keep doing it”. The other employees seeing that the bad behavior goes unaddressed, other than by meaningless memo, when everyone knows who the tardy employees are and everyone knows the manager knows who the tardy employees are, decide “wtf, I’ll just come in late too since there are no consequences for bad behavior and my manager is to chicken-shit to confront us.” So more and more employees came in late, and later, and more and more memos are sent out. Etc., etc., etc.
Lesson: if there is a specific problem(s) and the specific person(s) causing the problem(s) is known, just deal with it directly, quickly, and professionally with the person(s). Handling in any other way, including ignoring, just leads to more of the problem, and other problems.
