The only thing I can think of is contacting Vod if you really wish to. It seems he created a design for Vod a little while ago, and left a negative rep saying he wasn't paid (it was a contest for design win, so I'm assuming it was a misunderstanding on his part, not on Vod's). I couldn't find any mention in the thread, but Vod may have a PM history with him. He may have sent him a URL to preview, which would tie that account to a domain.

Obviously, the account may be stolen, but it would make it more difficult for that person to use that domain going forward, or create a BTCTalk account without having to reconcile that.

Just a thought, I obviously don't want any doxxing to happen.

*Topic regarding this was here: https://bitcointalk.org/index.php?topic=1780959.20

Edit: + looks like he didn't have the best history on other sites: https://www.sythe.org/threads/reporting-vervainagospoda-blackhat-selling-guides-available-elsewhere/