http://redlib.bunny5exbgbp4sqe2h2rfq2brgrx3dhohdweonepzwfgumfyygb35wyd.onion/r/Unexpected/comments/1ifcpka/be_careful_of_untied_shoelaces
My mild conspiracy theory is that they're run by Reddit because it's not like they are totally random. They have extremely algorithmic posting strategy, they have several large subreddits where, if they were so inclined, Reddit has the resources to investigate the source and eliminate it or, if they're feeling lazy train an AI to target them.