I honestly hoped it was something about leaving Google as a customer. For example, in the past week, there was an article about Google stating that email stored on Google's servers isn't "private". I hoped there would be other, relatively technical, reasons behind a "break-up" with Google.

That's why I clicked the link. I still think it belongs on HN because it's something readers here would probably be interested in (not me though).

I wasn't expecting anything specific, I clicked it because it was at the top. There have been many "Why I left [Big Corp]" in the past, subconsciously I was expecting something like that, or at least not a motivational speech.