Interesting. I would have thought things at Google would be relatively chill. People on /r/cscareerquestions who work at FAANG usually say they work less than 40hrs a week.
I would be shocked if that sub wasn't thoroughly astro-turfed. The constant influx of new devs and repetitive questions, the relative lack of experienced devs and the potentially large payoff make it the ideal breeding ground for manipulation.
There are quite a few regulars, and funnily enough most people on the sub are quick to call out possible astro-turfing. It seems unlikely that it's thoroughly astro-turfed.