There's already a section mostly for discussion of scammers: "trading discussion". People are usually given scammer tags only after a topic about the person has been in Trading Discussion for a while.
The forum doesn't arbitrate disputes or handle justice. These are messy, complicated issues unrelated to forum moderation. Other people should independently handle these things. The scammer tag is designed to be the
least-severe reasonable response to scamming. If I could do less in this area, I would.
1. A labeled scammer creates a new screen name to scam again.
Scammer IPs are banned from registering new accounts. When scammers provably bypass this ban, their IP info
can be released.
2. A labeled scammer does not have the ability to get their scamming status removed.
As far as I can recall, there are no cases where someone incorrectly received a scammer tag. I'd like to keep it that way.