Since a few minutes ago, I haven’t been able to submit any answers on Stack Overflow:
This seems to happen on every question; I tried using both Firefox and Chromium. According to my profile page, I’m not blocked from answering. The question isn’t deleted, locked, or closed. I can comment fine. What’s going on?
… well, I assume it’s happening to everyone, since the last fifty or so questions have gone unanswered.