More like "yesterdays", from before social media and search engine social engineering turned everything friendly for advertisers. The difference is between the kids who got giggles from sending surprise links to Rick Astley music and the kids who got giggles from sending surprise links to Goatse and Tubgirl. So don't worry, as the algorithms progressively hide its existence, this nonconforming/sick humor is getting rarer by the day... but as for me, I'd rather not spend time with moralists, so I won't be seeing any further messages you write.