I try to be the same as I am IRL as I am online. I think there's always going to be some degree of separation whether you realize it or not, though. Not just because the anonymity that the internet offers often inspires some level of performative behavior, but the text-based format requires a different kind of communication as well. It's hard to be exactly the same as you are IRL when online, but I think it's better to be as true to yourself as you can be. You make more genuine friends that way.
These days for the most part I am the same online as I am in person, I just exist in person so much more. I used to be more myself online than offline but these days since I have started being myself more offline it has more closely aligned to me being myself everywhere.
In real life, I don't make superficial judgements or spew smart-mouthed quips. I actually consider myself to be polite, level headed guy; sites like this are really where I go to forget about that for a while and just have fun.
However, much like on these forums, I like to avoid discussing personal issues and politics whenever I can. Mainly because I always prefer to avoid unnecessary drama in both cases.