There isn't a problem here. This is the same bull**** that went on over on GON with a bunch of guys wanting to call anyone who sells a bunch of stuff a "dealer." I don't know why so many people care so much about what other people do with their stuff.
Nobody gives a **** about what other people do with their stuff. Some of us give a **** that our ads get pushed to the second page in an hour because a pawn shop craigslister lists 20 different ads for different watches, etc.
The Gun dealers section has the same issue, but no one cares because they are in their own section. If the gun dealers listed their ads in our section--pushing all of our ads down--that would piss people off. It's the same thing.