The older I get, the more I turn into my father, who despises wishlists and won't tell people what gifts he'd like. Only receiving gifts that were on a list removes the mystery and wonder from the process.
I've begun telling people who ask that a good gift is anything interesting that I wouldn't buy for myself, and I've been pleased with the results.
(This isn't a commentary on GiftSocial as a product, but on wishlists as a social construct.)