Sorry to hear you're going through this, Bri! I know how frustrating it can be.
Last year, I had a handful of good 9/9 reviews that were fake. I see very few new clients--in fact very few clients in general--so I knew they were fake. Positive as they were, I don't want fake good reviews posted about me, especially when listing activities I don't participate in.
I went through the process you mentioned, Heather...As TER requires (or at least did last year) I sent PM's to the reviewers to please remind me of when/where/what date we met. If they didn't respond within three days, TER would pull the reviews. Which they did.
Along comes another fake, this was not necessarily bad but again, claiming things I don't do (rushing out of the room...ummm...anyone who knows me should be laughing at that that alone.) I PMd the reviewer and he said he saw me at the Ritz. Well, the Ritz Carlton in Lake Las Vegas has been closed for years. I reported this to TER and tried to send him another PM to ask if he might be confusing the hotel name, and he had blocked me.
TER responded that the Ritz doesn't necessarily mean the Ritz Carlton (HUH??) and they believed his side of the story.
I like your idea, Heather, about including screen names in introductory emails.
Maybe things will change with the launch of the new, improved site?
~namaste