I couldn't agree more on Hello Dolly - it adds no useful functionality and, for the vast majority of users, simply adds another step to the installation: having to remove it.

It's not about its size (actually 4kb on the disk) but the unnecessary cluttering of the plugin page. If developers need "an example file on how to develop plugins", I'd suggest they download it along with the necessary documentation.

I appreciate a light-hearted gag as much as anyone, but this joke isn't funny anymore.