Fair. Wrong word choice. The point just being that there could be a lot of company... encouragement... to be vocal about what you think of working at the org.

And of course, to the point you raise, we must always take that with a grain of salt. Nobody is going to come to the table with complete honesty about the problems at a company with their name right next to it.

Within reason, at least.

Astroturfing just means faking grass roots / community movement. Makes less sense here than in politics, but it would be possible if the marketing department was writing these blog posts on behalf of engineers.