What do you think of singers who don't write/produce/compose their own music?

"You're scammer and a liar, you're a disgrace, you failed at being a decent human, you disgust me," said no one ever.

No one gives a fuck, making music, arts, singing and stuff is about having fun or expressing your emotions. Keep on doing that, and remember that the opinion of others do not count unless it comes from loved ones or friends. Trust me, I'm old enough to have wasted way too much time on wondering that kind of thing.

Also I'm a computer programmer but I've never written an operating system. I know a billion other things though, I still have fun every day.