Matt has a reddit account. Also, from what I understand, this AI is a modification from work he has done making players for Warcraft 3 and Dota.
Regarding releasing replays:
>>"I'm also aware that Blizzard programmers might find the project interesting but Blizzard as a whole is obligated to not like the idea; this is also reason I've never released a replay, as this would be a clear indication I've played the bot on Battle.net (not to mention they might have a detector or two for things with 5000+ apm)."