People who can't take criticism

Man oh man. It pisses me off.

I play the game, Left 4 Dead, and there's a few sites that authors can post their own works (custom maps/campaigns). I've found in recent months that if you criticize a persons works, they get real huffy. I don't mean stuff like "You r map is a piece of shit" or similar stabs. I'm talking honest criticism.

Then you get fans of that authors works. They get all pissed when they read criticism on that map. Even though they never made shit, they tell you if you can do better to go make your own. I don't know what that's called, technically, but it sure is stupid. I'm starting to think that today's generation is fucking retarded beyond all help.

I know. I write fiction in my spare time and I have a fiction library online. The website I use, people can get huffy if you criticise their art or fiction so I don't tend to comment on stuff unless I like it.

My problem is with constructive criticism. People get offended at that. That's the part that irritate me.