We all get them. Whether you're a regular member, premium, guest, troll, banned.... you name it..... everyone sees them from time to time. It's a small glitch according to Fred, which just tends to slip in every now and then. If you do happen to hack your way into one and read it, your computer will catch fire, your monitor will blow mercury gas out the front into your face and you'll be maimed for life.
I'd advise highly against clicking on them. Lefty, an old member here, did it. He's now playing second base for the Dodgers. I mean literally....
second base. His arms and legs are gone due to this phenomenon and he can't make Christmas cookies, so all he can do is be second base.