He wasn't being attacked for being unoriginal, he was being attacked for his laziness and his blatant lack of creativity, there is a world of difference. All he gave us to start with was a sprite, a name, and an empty promise that he might consider making a game out of it. What did he expect in return?
"Ooh, nice… sprite!"
"Awesome! I can't wait to see more of that single sprite!"
"Well then, here's a ZOOMED IN version of my sprite! Sha-shaaa!"
Now, if he had needed help or something, like if he came in like, "Hi guys, I'm working on a Yume Nikki fangame, I've got a lot of ideas but I want to keep them quiet for the time being. I was wondering if any of you knew how to do this and that and this, here's the character from my game, btw, his name is Saul." He might have gotten a bit more encouragement and assistance, but as far as we knew, he had no trouble with game development whatsoever. If he had a demo ready, or at the very least started with some concept art or screenshots apart from one single measly sprite, he might have deserved more than he got, but the fact remains that he had nothing to show us, and most likely expected us to do all of the imagining for him.
What I'm trying to say is, there's nothing wrong with encouraging amateur fangame makers who display effort and creativity, Moga is the prime example of that, he's not the best programmer or bug tester out there but he's certainly passionate about his work, and he shows it, long before May got it's first release Moga was sharing ideas and concept art with us like crazy and even making little games on the side. Mick is nothing like that, all of his behavior can be summed up as, "Here's a sprite, what do you make of it? His name's Saul and he's going to be my character or something, I dunno, I might
make a game out of this… if I feel like it. Yeah, okay, uh, he's a kid in high school, like me, yeah, and uh, he's single, like me, and, uh, he's a nerd… like m- OH, oh, I paid some guy to do concept art of him for me, what do you think of THIS? Am I cool yet, Uboachan? Do you love me yet? Do you want to make my glorious creation famous yet?"