I found the signatures so distracting and traumatic initially, that after I signed up for the Forum, I didn't post for a year or two except for a couple maybe. And then I bitched, and someone told me how to turn them off, and then I started posting.. Yes, whomever told me how to turn them off should be perma-banned no doubt about it.
Now however I am used to them, and really hardly see them anymore, and turned them on a couple of years ago. The mind adapts. In fact, it is kind of an interesting case study really. Maybe it should be written up in some neurological journal or something.