The above is an example. I put it there intentionally. I see it at the top of a lot of Q's and A's on Main. What is it? Why is it there? Is it kbd shrtcut emoji kewl speak I just don't understand 'cause I'm older than 21? Or is it some indication of incompatible Markdown editors being used which generates interesting stray characters like that? Or is it something far more sinister, like Skynet flexing its muscles?