Every /pol/ humor thread gets pruned. They're being pruned because, as many of you may have noticed, /pol/ is being slammed with spam and shills.
Our friends over at shariablue don't want to run the risk of redpilling their normie cultists through exposure to our memes, and that means that humor is plainly off the table.
Never forget that the first social engineering of a tyrant will be to remove humor from a society.