While I dislike Facebook, I find the possibility that, it’s popular because it once was cool, very amusing.
“Eternal September is a Usenet slang expression, coined by Dave Fischer, for the period beginning September 1993. The expression encapsulates the belief that an endless influx of new users (newbies) since that date has continuously degraded standards of discourse and behavior on Usenet and the wider Internet.”
P.S. Get off my lawn.