On the "evil point haired boss" level it seems these types of things like their internal message boards cause a lot of trouble for the company.
On the less evil side it seems like employees waste a lot of time on these internal sites and all the internal social justice stuff.
Maybe Google just seems to get it's dirty laundry aired out. I've been working in this field for 20 years not including my internships in college and I've never worked any company that seemed to have as much of this weirdness as Google seems to.
Maybe it's an artifact of them having a money printing machine and then a ton of employees who seem to work on items other than the money printing machine which don't really matter to the company's bottom line.
From the outside it just seems like a never ending series of stories about ultra-toxic management.. all of which greatly exceed anything I've seen in my career.