That, and the thousands of numbskulls who waste their time trying to get ChatGPT to do math problems that a $1 calculator (or worst case, free Google Sheets) could do, is the most pointless waste of computing power, and I say this as someone who remembers Flash ads.
If you really are staring at strings and wanting those letters counted, you can easily ask it to write you a Python, JS, Ruby program that will do so, and in my experience for a task like that it will NAIL that task perfectly 100% of the time, and can even explain how it works to boot!
When I tested it on subjects I knew, it gave better answers than teachers in my high school (Poland, but I guess it might be similar elsewhere in the West)
Also, a friend physicist tested ChatGPT on the basics of quantum physics and he was surprised at how much it knew.
IMHO the chat is at a level of 1st year university student - of any subject available. The only issue being that it always sounds super confident, even if it's wrong.