It's easy to pretend you know who it is. If I'm honest, I was doing an experiment with my "JR" post, just to see how people reacted. And it showed that anyone can take a guess based on a few rumours, and then some people will react as if it's gospel, even when they have no idea who the person who told them is!
If I really wanted to post initials, I'd be more likely to post something else tBH.