After hearing feedback on the new Sell List feature we have decided to completely separate these games from your main collection. The new sell list will work almost exactly as your wish list with these items not being listed along with your main collection. All other Sell List features will still function as normal.
All games that were marked as For Sale have been ported over to the new Sell List. If you already had games on your Sell List, they will still appear in your main collection. This will allow users to manage these and decide exactly how they'd like to list them.
I have more updates planned for the sell list, including notes and item details. Let me know if you have any questions or issues and keep the suggestions coming!