Now we need to wait for other users to review your flags and perhaps they'll support it. That would put a red box on the threads started by those two users and hopefully that would serve as a warning to potential victims... that's about it. It's very unlikely that the scammer would return your $10 and nobody can force him unfortunately.

Links to flags for support:

https://bitcointalk.org/index.php?action=trust;flag=766
https://bitcointalk.org/index.php?action=trust;flag=767