#1
Do any of the contests send you unrequested mail?

As in, will I regret filling in 'address' on each of the contests? Since I started signing up for them I've only filled out the required fields.

I'm guessing they just email you if you win, too. Correct?
#2
no, UG wont spam / sell email addresses. UG only use it for contacting winners.
Been away, am back