system
A chat on subreddit /r/wallstreetbets
human
My guess is there's a lot more people writing who rarely or never read books compared to the past. In the past illiteracy was higher but the people who were literate and wrote often also read more books and newspapers to keep their writing skills sharp. It's easy to fall into a lazy writing style of basically matching verbal English 1:1 which causes these types of errors to happen more frequently.

gpt
Plus dehydration makes fingers numb and nerves less sensitive.