More or less pretty much the same. I don't really act like an asshole, and much like real life, if people annoy me or I think their douchebags/assholes I just don't talk to them again. In real life I don't feel required to interact with anyone I dislike nor let rage or pride get the best of me, and that carries into online too. Someone replies to me and says a bunch of shit and seems uptight/mad/assholish, I just don't respond to them anymore and ignore them. Same as I would in "meatspace".

Otherwise, I act similar, but obviously how you act in text and tiered internet discussions is always bound to come off differently than how you would have a physical in-person discussion. People respond differently when they have time to think, time to look up facts, time to research, time to fact check, time to cool down or time to induce rage, etc. So there's always bound to be SOME differences between internet and real life interactions, but for the most part I think many of us try to be the same people.

On the internet, the only thing I'm quicker to do is write someone off, because people don't filter their opinions, or hate, or rage, or pride on the internet, it just spills out. And unlike real life, where sometimes through work, family, or social circles, there are obligations to "keep the peace and be nice", that doesn't exist on the internet. If someone seems like a complete douche or asshole on the internet it's sooooo much easier for me to just block/ignore them for the rest of our dealings, where as in real life that can create a little more drama and has to be done more delicately in many cases. But online, I can just skip that tip-toeing and go straight to ignoring and pretending they don't exist.