In the boom of geocities time: The horrible autoexport from Word to HTML that inflated the kbyte numbers on people's websites and had weird windows charsets the non-techsavy windows-only people didn't even notice were not standard, but on my Linux system would not display quotes or apostrophes. I actually taught myself how to script textfile editing in bash just so I could automatically strip their fanfic files of crappy windows nonsense and read stories. Also there was one Sentinel author who inexplicably posted their story as images of text because apparently as I found out when I emailed, some desktop publishing layout program she formatted her fanfic in created that as automatic "web formatting" and she thought it was the same as text and really happy because her custom fonts and such all showed. So much wtf, in particular since I still had dial-up then and my eyes aren't great.