Or its a simple signifier that the author was human, and that a real person is trying to convince you of something. I've experimented with putting minor grammar mistakes into my work of the sort that would be frowned upon, but are not strictly invalid. The existence of any kind of mistake makes the work sound "human".

It's absolutely a power move, but it's also what happens when people are surrounded by sycophants who never correct them and will take time to decipher what they mean.

And over years, sloppy typing (forgivable) evolves into sloppy thinking.

I don't necessarily think it's that... it's just a matter of a rush to respond/send quickly and not take a lot of time. It's pretty easy to either fat-finger when typing on a keyboard, or gesture input on a phone to get the wrong word and you hit send before realizing.

Sometimes I'll notice right after, delete and re-reply (social media) other times I'll just let it be... It's pedantic busy bodies that will single you out for a typo as opposed to discussing the idea at hand.

>It simply shows that you don't have to care about your mistakes.

Interesting, is that the equivalent of billionaires wearing sweatpants?