Okay, im gonna be honest here.

Whenever someone makes a positive comment on my work and doesn't favorite it, it does annoy me a little. (Especially if its my original stuff/non Wyngro related) I can agree with that feeling. But I'd never honestly yell at anyone for that. They're free to favorite whatever they want to if they want, i wouldn't force anyone to like my work. While favorites are nice to see, they shouldnt be the obly sole way of expressing appreciation for something on Da.  This dude is being extremely disrespectful if he (or she) doesn't understand that.

Not only that, but I completely understand the facts that favorites are public, and what you put in them will be seen by others. Im also getting much more cautious of what goes in my favorites, as I wouldn't put something in there that might cause trouble later on, or possibly ruin others opinions of me or possibly my friends as well. 

People really shouldn't assume people dont like their stuff if it doesnt go into their faves. And this dude needs to chill, whoever he or she is. And they really shouldnt block someone just for that. Blocking someone doesnt make matters any better.