I remember in the very early days as a hobbyist working with cgi perl scripts for forums or guest books where the script just edited the "static" content in place.

The script would write new html files for new posts and do "fun" (I mean, terrifying) string manipulation on the main index to insert links to posts etc. Sometimes they used comments with metadata to help "parse" pages which would see edits.

These both were, and definitely were not, "the days" :D