Yuxi, are you saying that since people with intent can scam us anyway, we shouldn't at least make it harder for them to do so?
The fact that after a transaction gone wrong, buyers need to alert mods to lock the thread in question screams that this action needs to be taken. If it wasn't would people be asking this of mods?
Maybe you'll find someone else to help you. Maybe black mesa... THAT WAS A JOKE, ha ha, fat chance.
My Buy/Sell 1337ness rating