Well...


....then there's the problem of posting an item up of Equal Or Greater Value to replace the item claimed. By what or whose standards are used to justify the value of the item(s) claimed and replaced? Where is the ceiling on...Or Greater Value?
After all the intent is for members to Pay It Forward not after unless the member receiving the item has not previously listed an item. Thereby shouldn't only members that have an item or items already listed only be allowed to claim another members listed item?
What time limit should be set for a member's item(s) not be claimed after that member has claimed an item they should replace the previous item(s) with something else?