Well, it does depend on how new the user is. If he/she posted around 10 posts (no offence meant The Bear), it's kind of hard to believe what he/she is saying just because they haven't built up the trust yet.
Now, if you were able to prove yourself and/or your (good) reputation, that would be a different story. I'm sure this is the same on all forums for a reason. There are too many 1-post scams, but then again, the same could be said for the exact opposite, taking the time to build a trust... But most con men are lazy
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