Decades (!) ago I ran into a guy on Flickr who commented on people's pictures taken inside cars. He'd say something like "it's very important to wear your seatbelt on the back seat". His entire history was of comments like that.
At the time I thought it was just some crazy person; maybe he just had some accident history and wanted to warn people.
Now I'm the person who goes to race course discussions to say "tHaT eLeVaTiOn MaP iS iNcOrReCt" and I feel like I've turned into that guy