They're just shy. I signed up in order to take the quizzes. I forget how I actually found the site. Some people just take some time to sign on because of paranoia like I have. I can't begin to say how many sites end up barraging me with spam. Thankfully that has not happened here.I suppose others come on as guests so no one can follow their activities. Though What the Heck. Not too many people are public with their names. So it's pretty anonymous anyway. (darn, I thought I had mispelled a word, but spell check said it was right)