"Hey Sebastian, I wanted to give you a heads up. I saw your recent post, but you spelled "wisen" as "wizen" - easy spelling error to make, since they're uncommonly used words, but I thought you should know. "Wizen" means for things to dry up and lose water. Cheers and best wishes."

"Hey, thanks... I don't worry about spelling too much, but yeah that one's embarrassing, I'll fix it. Much appreciated. Anyways, what are you working on? How can I help?"

I find this insanely inefficient. The proper protocol is as follows (communicated privately, so as not to take other people's time; the emotional reception on both sides is neutral):

"Typo: "wizen""

"Thanks"