I think that it would be worth a try on a thread on this site!
If I can write sheet music, post it and have a way for people to be able to listen to it and/or print it out and play it, and you math people can post your fancy mathematical diagrams, explaining your brilliant answers, I'm sure that we can find a way to be able to have one or more games of chess on this site!
Trolls? We'll, the threads could be pre-arranged games with someone so that the threads wouldn't appear to be questions. Someone not knowleadgeable enough about the game of chess would also probably not be that likely to post on the threads.
Someone making intelligent comments on them, I think, might be beneficial to one or the other player, or perhaps both, though.
Thanks!