So? Fame is relative. Most people probably don't know who Paul Levesque is, either, but that doesn't mean he's not a celebrity with huge appeal to his audience.
I have no idea who that is.
I'm not saying her problem is irrelevant, but she's better known than Sarkeesian. People spend so much time immersed in geek culture that they don't realize how little of it seeps out into the rest of the world. I have a large family, and they have many friends, and if I gathered the hundreds of them together and asked for a show of hands as to who has heard the name Felicia Day, I'd get zero hands up.
Of course, the same would happen if I swap Felicia Day for GamerGate; no one knows what the hell that is either.
My comment's point is, the police took Sarkeesian seriously, would take Day seriously, because they're people who are being harassed, not as a matter of celebrity status. Celebrities get shit every day from journalists, paparrazzi, etc., but it doesn't give them special status. The law enforcement benefit to being a celebrity seems to be what you can get away with, but not as a shield to what's done to you.
And that changes her connections in the industry and the weight that will carry with law enforcement compared to the names previously attached to Gamergate? You can argue that she's not enough of a celebrity for it to matter, but you can't change that her name is directly connected to a lot of even more famous people. She is a minor celebrity, but she's still worked with Joss Whedon, Neil Patrick Harris, Nathan Fillion, etc. Can any other person who has been harassed because of Gamergate claim such connections?
That's only going to matter if she starts calling in favors.