I have seen a lot of auction threads which says something on the lines of - Members with trade score lower than 5, please contact me via PM before placing your place bid.. I am curious to what kind of questions do you ask the new guy, that may help raise your confidence ? How do you determine the eligibility of the new guy ? What questions do you ask in private messages that cannot be asked in public ? P.S - I know that it is pretty normal for sellers to not allow relatively new members to bid on their auction, for obvious reasons.