I like looking at old 4chan posts to see the birth of the Brony fandom. Like for instance, within 10 posts on the very first Pony thread they were already talking about enjoying some 'Pony Scat Porn'.

Or who can forget this epic quote?
"Hey thanks for the picture Ponybro"
"Don't mention it"
"Ponybro? More like Brony, amirite?"
"Dear god that sounds so stupid"

and so, the Brony community's own little hugbox was born.