Making mistakes is human albeit, but constantly doing blatant obvious errors is beyond my comprehension.
I get that you could type fastly, and don’t even double check what you actually typed (it happens to me aswell) but making easy/stupid mistakes that you could avoid, and even refuse to learn or improve your grammar from your past moves, it’s only gonna be unproductive for you in the long run.
Plus!!! If you don’t correct your errors, other people might even interpretate your message in a wrong way!