Alien Invasion or Proof of Intergalactic Humor?

Every other day we get a new prediction for an alien invasion or alien intervention, or some kind of significant global event predicted by 'the aliens'. If all of these people making predictions on behalf of 'the aliens' truly believe that they are in contact with ETs, have they at some point considered the possibility that the ETs are screwing with them.

I'm not saying they're not in contact with ETs. I have a hard time believing that every single contactee is lieing, but it's possible.

It seems like a pretty good interplanetary joke, probably gets funnier every decade that it continues to produce the same results. Show up and make a believer out a human, provide no proof of your existence that can be shown to others, predict a global alien invasion or intervention, sit back and laugh until you wet your alien pants.

I know if I was a contactee and the dates given to me kept passing with no events, I would start to suspect I was being messed with.