I'm annoyed because I just saw a combination of all three of:
People claiming #copyright on a work that is or should be non-copyrightable.
People misrepresenting what a license says or pretending they are the one who decides how it should be interpreted.
People using Creative Commons' *-NC licenses (NC was and is a mistake (not as bad as ND, but still)).
Just people being wrong on the internet of course, but I'm still annoyed that I showed it to me.