What is a Reputation Score?
A user's Hot Deals Reputation score is a rough average of the "Hot or Not" rating for all of the deals that user submits:
Want to earn a better reputation? Post hotter deals that snag more "Hot" votes! Share your deals with friends on Facebook, Twitter and email and ask them to vote on your deals.
NOTE: A user needs to have 5 deals ranked before earning a reputation.
I don't know about their shipping, but you an do in store pickup. A lot of stuff on sale but they also have a regular clearance going on.