I mean, most of them were meant to be silly, but reddit was also around a shockingly long time for an internet community. Consider that Myspace was only around for three years before it started losing status. Reddit, by comparison, was a major site for a decade and is only now starting to drop. And the remindme bot has been around for most of that time. A bunch of those ‘remind me in a few years’ posts were actually tripped.