A few weeks ago, I discovered that my public IPv4 address had been blocked across all of the Stack Exchange network. That was surprising. My IPv4 rarely changes and I hardly visit any of the sites (who does? lol). I submitted a report to the email address listed. Never heard back from them, but a week later I randomly learned I was unblocked when another Stack Overflow answer appeared in a search. Just checked my IPv4, and yep, same one in the email I sent.

Stack Exchange is toast... I mean, cooked. They've been falling apart for years. Unlike the top comments, I stopped posting there in 2014.