I asked a related question about how often you lie, on a daily basis, but I think this is more apropos for today’s general aesthetic.
Thinking about it, I definitely misrepresent myself online 100% of the time, as I never say who I am. I do say a lot of things, but in a generic sense, enough that it would be hard to pin down who I actually am. I have a deep and irrepressible sense of distrust for the state, for decades, despite what I do for a job. So instead, I have an online persona that does indeed reflect my values, but is separate from the public facing person you might know.
Ed, I told you to get of the internet and turn off the light, I’m tired. And if you steal the covers again tonight you are sleeping on the couch for a week. Did you remember to take the trash out? Don’t sigh at me… you know how I hate that. Goodnight Ed.
Unless you’re limiting yourself to very terse responses or having someone else (ideally random) write all your online content, you’re still very much at risk.