I am 100% confident it's them because so many details lined up (team, size of family, compensation, role, location, job level) including them using a specific phrase of words after a few days I sent it in our work chat
Obviously, I can't prove it's them so HR would never take action. Not only that but this guy is one of those started coding when they were 10 years old so not only are they a higher level than me, they also perform way better than me so complaining to my manager or teammates would 100% also backfire as they would 100% prefer a very high performing misogynist and transphobe than a poor performing woke sjw (me)
I think your real blocker here is you snooped on a coworkers social-media. And not their Facebook, but their reddit account, something that's supposed to be anonymous. HR would probably fire you for cyber stalking a coworker if you showed that evidence.
I can't imagine he's that much a of a peice of shit in person or else you wouldn't need ilicit evidence to report him. But if the coworker is generally a piece of shit you now know how bad it is know what to keep an eye out for. You kind of have an edge on him. You know he's a coward.
didnt think of that, good point