Comment by Izkata

I did the search because I have a similar memory, I'd place it in the early 2000s before StackOverflow existed, around when people were first switching from latin1 and Windows-1251 and others to UTF-8 on the web and browsers would often pick the wrong encoding, and IE had a submenu where you could tell it which one to use on the page. WTF-8 was a thing because occasionally none of these options would work, because the layers server-side would be misconfigured and cause the double (or more, if it involved user input) encoding. It was also used just in general to complain about UTF-8 breaking everything as it was slowly being introduced.