Yes they will have a kind of community management with Snapup, it is very nice, its fun to have a profile and karma point and to see other's point. The bid would be determined by the will intention of users for a product.
It would be very nice and Snapup will sell premium product, so i think a lot of people will use the platform to buy expensive product at a very low price, and with that people will a bit network with the auction and bids function.
The idea is really nothing new at all, though most of cryptos use existent ideas combined with their blockchain technology.
And that's why we're here - we believe in blockchains and its' future benefits.
Anyway, it truely could addict a huge amount of people all over the globe to cryptosphere!