What is this "reject" thing you speak of?
Seriously though, when I started out, I really appreciated rejection emails...it helped me become a really good gallery submitter...so when I did make the transition to a freesite builder, it was a pretty easy transition.
Some submitters and owners don't try to nurture a healthy relationship. Submitters blindly keep submitting without correcting their errors, some owners make outlandish rules that alienate submitters, and both submitter and owner end up losing out because they didn't take the time to nurture a good relationship.
As for UW, I submit to both of his sites because he's straight forward with his rules, there's no mystery rules that only a mindreader could figure out, his rules page isn't the size of The Declaration of Independence, and if you get accepted at Filthyearl's, you're going to get accepted at all the sane LL's that are out there. His sites are a good litmus test (or was that pregnancy test, hmm), for the "bigger" sites.