I have been argumentative (to put it mildly) online, in various places. I definitely regret things I've written. I don't take things too seriously though. Just some days I have no filter, and it comes back to bite me. Most days I'm optimistic and hopeful. I know that tone is hard to interpret online, and that I've misread and been misread equally at times. In real life, I'm honest and stick my foot in my mouth sometimes. I'm sure I do the same thing online too.