Remember when newgrounds still had porn ads? Good times.
Don't worry OP, I think it's a fairly normal feeling. Everybody who has used the net for a longer period of time is bound to find themselves in that kind of situation sooner or later. I feel I'm a little too sentimental for my own good, too, but remembering 'good old times' is fun (and at the same time sad, that's how it works I guess) so it's all good.