Disney killed a bunch of them to help perpetuate the myth.
and further that the same small group of lemmings was transported to the location, jostled on turntables, and repeatedly shoved off a cliff to imply mass suicide.
So its about big corpos spreading misinformation and trying to kill something small to earn more money. Lemmy (and the fediverse) wouldn't know anything about that, right?
I didn't really think much of it myself, but when I joined, for like two weeks, joining instances was a bit harder due to some being closed and others having sporadic downtime. So one very common joke was people saying "Lemmy In! LEMMY IN!"