Archive from just now, there is only one more tweet in the year since, but it is likely he has been deleting them and just happened to end up around the same amount. He is also down some following/followers and liked tweets. http://archive.is/FOzYK
Just like we can do with other locked lolcow accounts, we can search to see what has been said to it and figure out context of what they could be replying to. If they were smart, they would also be replying to this with their own locked account (Blowy finally learned that lesson), but many did not. https://twitter.com/search?f=tweets&q=@bri_wu&src=typdhttp://archive.is/HBaVMhttp://archive.is/crOoB
That'd be my guess; they've been her obsession for the better part of 20 years.
Do we know anyone who's a journalist she'd trust? Anyone with good public socjus standing? I'm sure many of us put up a good to neutral public face to stay in the good graces of troons and cows. Mine is good, but I doubt it's prominent enough to earn entrance; I've also never bothered to build up a twitter audience, and that's her primary playground.