Nobody accused him of anything, but rather voiced their suspicions.
Selling or buying accounts is always going to be a risky business and you do so at your own peril. The simplest solution is not to buy an account, but if you do then you've taken the risk of doing so. The best you can do is buy from someone who has done a few successful trades before, but that doesn't guarantee anything.
Whether he was formally accused or not isn't really relevant to the point I was trying to make. Rather that it would have been better to get the account details before "voicing your suspicions", so we could establish whether this was an attempted scam or not.