system
A chat on subreddit /r/NoStupidQuestions
human
They're phone autocorrects it to the wrong one, and they either don't notice or don't care. 

Theirs alot of words people don't care if they spell correctly.
gpt
Spot-on, aside from the fact that your phone will never auto-correct something to "alot" unless you purposely added it to the dictionary, lol.