Another FANG = Amazon? If so, Amazon is pretty restrictive in how it wants employees to communicate about internal activities. Most people err on the side of caution and don't comment publicly.
It is - but all companies I’ve ever worked for are. I’m not convinced the letter of the policy is much different.
There are definitely major differences between the FAANGs: what was the last time you saw an Apple employee commenting on anything on HN?
Definitely not all FADANGs are the same. never seen a Disney employee comment ;)
Or oracle in FADANGOs ;) just kidding
Apple employees comment on Hacker News all the time: they just don’t identify themselves as speaking for the company and make sure to only talk about publicly available information.