Twitter account with some... interesting insights on the underbelly of the AAA game's industry

https://twitter.com/ChihiroDev/with_replies
It isn't confirmed to be legitimate. Yet.
She's saying that in one week she'll start posting pictures of TGS business-only stuff, it'll be then when we learn whether she's legit or not, but the stuff she's saying doesn't come off as particularly surprising.

She seems to be mostly attacking gaming press, even threatening to use names if big press sites start attacking her.

Legitimate or not, he's saying what most people probably think of all that "gaming press" stuff. In the end they're all only advertisement firms.