Most of my projects are forked by people who never make any changes to the fork. I'm not sure if this is some kind of spam or people trying to make GitHub profiles look better to recruiters.
A fork = code under the user's control. A fork doesn't go away if the original source does.
GitHub's UI makes unintentional forking quite easy. When it shows a button like "Fork: 25", clicking the "25" will show the forks (which I often want), clicking "Fork" will perform a fork (which I usually don't want).
These types of forks are asirational guitars bought by people who want to spend the time but never find it.
Agreed. For me, forking is like super starring. Ive starred over 1000 repos, but hv forked < 100.