(Mostly newb and brand new accounts trying to scam I ASSUME)
It is not always true. Scammers who use brand new or newbie accounts to scam are the 'poorest' scammers (I assume). Because there is very limited people who accept to make deal with newbie or brandnew accounts.
The risk is buying a higher rank accounts, like Senior Member and above, and use such accounts to scam. Your guide might probably mislead noobs that they are much safer when Senior members and above make deal with them.
The key:
- Don't trust, verify first.
Which things to verify?
Their trust scores, total positive and negative counters.
From positive counters, if you have time you should move to the positive-trust-givers to see whether they are trust sellers or not. There are many complaints and proofs that there are shady trust exchanges. It is the point scammers might aim at. Buying one or two positive trust and have better probability to scam.
From negative counters, let's move on to see reasons behind it, with negative feedback.