We just need to be careful so this doesn't become a way to go around the rules. I'm not saying this is what you are doing but I can see a scenario where 1) member puts watch for sale 2) ad stays there for a few days and seller gets a few PMs 3) Seller changes his mind and put a different watch for sale.

There's no actual way to know if you are keeping the previous watch or it was sold via PM and now you are just getting an extra ad for that month.

But I'm sure the mods/admins will be on top of that anyway.