(I sent Stunna a PM about this bounty ~11 months ago and never heard anything back. I sent that PM because I thought it very likely that theymos would eventually merge my 2FA patch, and I wanted to give Stunna an opportunity to re-think this thread before that happened. Anyway, I'm not going to be an asshole about it and hound Stunna, but with 2 BTC on the table I'm also not going to play it so cool that I don't even try to claim it.)
Maybe you came too late. When Stunna created this thread, he gave alot of publicly by continuously bumping the thread. At a time he even doubled the reward. You also would have written on this thread that you wanted to join the bounty before coding the patch. Stunna could argue that you didn't follow the due process to win the bounty
Let's be hopeful OP will return to the forum because he appeared online this year. Also who knows if theymos might want to pay the reward of the bounty since the Op is not available.