Not really, no. It would make sense if she considered everyone a potential stalker, which I don't think she does. Instead, she's singled out two guys in game t-shirts she's never seen before and likely will never see again as a possible threat. I mentioned her as a counterpoint to when you said that the "people who are interested in the whole thing are the people that are in any way or form interested in gaming and i doubt that they are all so easily influenced by Ms Wu on television". Felicia Day is very likely someone who's interested in gaming, and she was influenced by the toxic rhetoric and threats being flung around. It might not have been Brianna's appearance specifically, but it shows that this thing can have an effect on the general public and on people who would otherwise know better.
You know the trolls are going at it hardcore when someone who's been stalked more than once starts adopting that sort of behavior.
Alternatively, she might have been prompted to do that due to someone else' influence. This is pure speculation, of course, but I wouldn't be surprised if her fears hadn't been developed by hearsay from her friends. For example, Will Wheaton (who IIRC is a pretty Social Justice-heavy kind of guy).