Qntm is the pen name of Sam Hughes, who writes science fiction. So I'm pretty sure this is fiction in the form of fake tweets, and that Google People didn't ever exist.
Their book There Is No Antimemetics Division is pretty good but also a bit disturbing (in a good way).
Just because they're a fiction author doesn't mean everything on their site is fiction. See the page called gay (I remember that link from reading it a decade ago, interestingly enough) about database normalisation, or the things mentioned in a top-level comment here https://news.ycombinator.com/item?id=37725082
I seemed to have completely missed this