HackerNews is full of these kind of people
Contributor: Hey guys, I wrote this proof of concept in a fortnight that does something fun!
HackerNews: Why the fuck would you do that, you nincompoop?
Contributor: I... thought it would be fun after shitty days at work
HackerNews: You could be spending your time making money or contributing to $subjectivelyMoreImportantProject. Be ashamed
People who can't accept that some people just want to have fun and do what they like.