Hypothetical Question

Your "accidental" spelling could easily be a lie and you are using that "accidental" Skype mess up to scam members.

Unless you specified to confirm before any trade, then is your problem

Doesn't matter if they confirmed or not, if the Skype is on the thread, a customer got scammed then it is your problem.

you always triple check your skype name when you post it, so i doubt if this ever happens

Your mistake

You made the thread, you put that Skype in there, we're not mindreaders, no way for us to know if you did it intentionally or not.

You would be held reliable for it. Whether it was a mistake or not. If someone gets scammed with your mpgh account or Skype username you are held responsible for that action whether it was you or not. We would never know. So in this case, regardless or no verification. If Skype does match the of the proof the scam. You would be at fault. Now the only thing though is if you put down wrong Skype name it's very unlikely would have the same exact Skype name exactly the same as that Skype name. So I mean, it would be a very rare case if this happens.