No, he really doesn't care. Just because someone posts in a thread doesn't immediately mean it's his first priority.
Think of it this way; say you're at a convention where there is a person making some sort of speech that is really long and has nothing to do with the convention itself. You probably wouldn't care about the speech, and neither would the person beside you. It's pretty evident that no one cares about the speech, yet you still sit there, listening to him.
Newgrounds is sort of the same thing.