I'm not sure it's a decline in anything. These people always excited and always will. We just life in a world where they got the tools to reach millions of new-comers who need to get hurt before they will understand.
With events like this it's always this Satoshi quote which pops up in my mind:
“If you don't believe me or don't get it, I don't have time to try to convince you, sorry.”
Maybe I'm part of the problems because I just feel like giving up. Maybe I'm part of the solution for this ignoring persons like Bitboy and hope others will follow. They feed on attention and we keep giving them food.