Not all that clever really.
Some incredibly stilted conversation that doesn't resemble anything like what those people post like (at least here), from an "upper gov" forum that the spy would have known they shouldn't have had access to, a forum with no work done on it at all, from an alliance that has been openly, ham-fistedly baiting Vox to post screenshots for weeks. Hell, even Nintenderek picked up that something wasn't quite right here.
I'd guess somebody on that side figured out how to use a doomed spy to their advantage, but that's just me. I'd say they certainly now know how Q planned to catch the spy in their forums.