I don't know why, but every now and then I'll get a golden wrinkler, and if I click on any o the other wrinklers they also turn golden. Clicking again returns them to normal.
I'm not sure if the first or any of the clicked wrinklers are actually golden at all, but I don't like it. It seems unfair, and obviously a bug. It has persisted through multiple of Cookie Clicker's updates tho. I don't understaaaaaaaaaand!