I found it quite helpful at times. Learning in my own projects, and some professional things that I got stuck on I found some incredible help at times.

In my niche, we also had an absolute dictator of a moderator who was a condescending jerk online. Open belittling of people asking questions, connecting new questions to those which had been asked years ago in a different part of the stack and then closing the question, etc. Real tin pot tyrant nonsense, and frankly, a bully.

There was a day where I saw they had been denied a role they interviewed for since they posted about it. I already knew they were in my city. It was a role I had advertised and was the chair for. Im still not sure exactly which candidate, but have my suspicions. In any case, bullet dodged.