my guess is someone was running a bunch of core nodes to bump the counts up, because it was hardly going down, staying flat.

so before turning them off, they also ran bunch of knots nodes as well. so they can pull them out at the same time as the core. nodes.

so its not like bunch of core nodes disappearing at the same time, but bunch of core and knots node disappearing at the same time.

but in reality, knots went up to 20%,

core went down from 20k nodes to 16k nodes