What's to stop someone from setting up 2 x Discogs accounts, and then just 'selling' a record from one to another so as to artificially inflate the price?
Say for example I used account A to list a copy of Fierce for £500, which I then 'sell' to account B. Whether or not I have the record is irrelevant, if the money is just transferring from one account to another nothing has to actually ship.
Discogs statistics are then forever fucked for that record, as it's down as being 'sold' for £500 meaning future (legit) sales would be priced against the inflated fee.
Not that I'd consider making multiple accounts on a site just to fuck with people, obviously.