The idea
SOUK began as a spreadsheet between friends: things we owned, graded honestly, priced fairly. It stayed that size on purpose. Every seller is known, every object is seen before it lists, and the fee is zero until it isn't.
The rules
No stock photos. No "like new" without proof. No reserve-price games. Sellers grade against a shared rubric and buyers hold payment in escrow until the object arrives as described. When a seller breaks the rubric twice, they leave the market. That is the whole moderation policy.