Are you taking the bid from someone with 13 posts seriously? Could be it is your alt account maybe, a friend or something along those lines?
For the record, I'm probably more skeptical than you at this point, having been scammed out of an unmentionable amount of LTC for FTC -- because of my "newness", I've ended up sending first.
Especially since this auction is public, and OP appears to be pretty active here, I'd assume it relies on the winning bid accepting and sending first anyways.
OP: If you make a public list for BTB scams, please make it as visible as possible. See my note here:
https://bitcointalk.org/index.php?topic=182424.msg2009544#msg2009544