Maybe, but there’s a market out there for CEOs who are willing to take the blame for some unpopular decisions and then walk away. There’s also something to be said that “-50%” might actually be an improvement over where it was before she was hired, and the bad decisions weren’t hers.
My point is that the data on here is purposely shared with every other federated instance, there’s no semblance of privacy and your data is shared with hundreds or likely thousands of admins by the time it’s done (more and more as the network grows). There’s no reason to trust that every admin will keep that information private, some people are already talking about putting up services to expose all the hidden information (in the name of “transparency”). It’s simply trivial for Meta or anybody else to get copies of the data because there’s no real protection from it unless you’re making your instance an island (and that’s an island from everybody, not just one specifically known to be Meta).
Fundimentally none of the data on here is private, it’s not designed to be private.
Much of what she was brought on to do (negotiating with advertisers I guess) isn’t really public facing, so from that respect it’s not that surprising that she appears to be doing nothing. I also think she’s not taking the L yet, if things get even worse Musk may blame her as an excuse to walk things back (“I was following her advice” or whatever).