This is a companion discussion topic for the original entry at https://www.kirupa.com/html5/disable_form_autocomplete.htm
Ah yes, this is nice! I can’t even begin to tell all the stories of where someone’s implemented autocompletion ruined the form I was filling out, resulting in me having to do it again.
The worst is when certain pages don’t take autocompleted fields as having actually been populated. It requires me to click on each input to have whatever code validates that there is a valid entry to get called 