It reflects the lack of content in the article, which boils down to, "things changed so I'm leaving." Lincoln isn't claiming that Quora is doing fine. (At least

It reflects the lack of content in the article, which boils down to, "things changed so I'm leaving." Lincoln isn't claiming that Quora is doing fine. (At least not in this comment.) I find it useful to be reminded that as a species mankind hasn't figured out how to grow things without changing them (and so exposing them to the possibility of decline).