Usually, you can recognize trolls on Twitter because they’re following a lot of XF accounts, or their Twitter is brand new, or they grill themselves in the replies. This time, I feel like this dude is legit, at least, I feel like he saw her on set, but I really don’t think he is able to know what she was there for.
The only suspicious things I can see is that first he tends to only answer non-Gillovny accounts and completely ignore the Gillovny fans who are asking him questions, and then he doesn’t follow real people. Only professional / business / celebs accounts with no apparent link between them. I don’t know if it’s enough to say it’s a troll, though.