Yeah. I liked this sort of stuff, I was collecting "do not open!" links, shock sites and so on. And once saw a gallery of GIFs called "Semantic Virii", sorted by country categories. Thumbnails looked like weird collages, a lot like Picasso paintings I scrolled a bit and closed the page.
Years later I was researching illegal CIA projects like MKULTRA and "semantic virus" caught my attention. Turns out there is a way to construct visual sequence that embeds some sort of command, think micro-hypnosis. It consists of three stages: attention grab, cultural crack and "ordnance" which is actual command. Attention grab is simple, utilising natural desires (food, sex, etc). Cultural crack is complicated and depends on country of origin. It utilises norms and common imagery of particular society. Ordnance is usually a "trigger-response" pair which embeds command. I was happy that I did not scroll down to my country - who know's what it actually do to you.