yes but if they get banned i more hard to scam right? because they need to make new accounts and people won't trust to make a deal with new accounts so easy but if they don't get banned the accounts getting old, they get lot of messages from posting here and people will trust only when they see their profiles.
The user who scammed you is a Jr. Member. That's literally only 1 step above a total newbie and gaining that rank requires only one merit. So no, it wouldn't make much of a difference for the scammer if they get banned.
But it doesn't really matter. Scams are not moderated. Multiple accounts are allowed. That's how it's been since forever and that's extremely unlikely to change. Due diligence is a must if you want to deal with someone online, and that's not just limited to Bitcointalk. If anything, this site provides good tools for due diligence (e.g. the trust system), you just have to use them.