Not always, in some case it they've inspired others to crank up the silliness; the 1990s Stairways to Heaven cover series was sublime.
https://www.youtube.com/watch?v=YAqwPcGuSpk https://www.youtube.com/watch?v=zQuGub7yzpA
> Robert Fripp played guitar with The Damned while King Crimson was on hiatus, because fun is fun
He may have taken fun too far (if that's even possible): https://www.youtube.com/watch?v=a3MTlJF2qqM