Why do many hate detection programs?

"i hate ai detection programs so much. my fully HUMAN WRITTEN essay shows up as 87% ai written. what are you even supposed to do if your teacher brings it up? how can you disprove them?

i put part of my text in a word counter site because the app i was writing in didnt have that. thats when it showed up as ai. saw someone make a point that these sites lie about ai content to make you pay for their program that will “fix” it and make it sound human"