"Hi TheCoinBull.
The people you took on for the wager would like to be paid now.
Please do get in contact.
Thanks."
I'll keep this thread posted if he... er... lets me know that he wants to pay up.

Right
if there was no escrow he or an official thread where he states that the bet is on, and wasn't just talk, then i'd be ok with you asking him to pay up
but as far as i know this was just talk...