What stood out to me is that the author does have an inflated sense of self importance

> And let’s not pretend that it’s a big cost to you: getting the listed data about a single person is about the simplest query you can write. (Did I mention I’m a data scientist?)

And that particular trait emerges quite a bit throughout the correspondence. Where the author labels things as reasonable, I open the link only to find anything but.

Since the author is happy to put words into Facebook's mouth, I may venture as well that the author was _looking_ to pick a fight.