I deleted them one by one. The cool thing is the blackberry lily seeds just needed 2018 added to the description and an updated seed and pack count. All the others where deleted and like you I was searching for some kind mass delete feature or something. It would be great if they had boxes beside each listing you could click on with a mass delete button at the top of the page. That way you could still keep the ones want. It's not really an issue if you only have a few different seeds but when members start listing many types of seeds it can be time consuming. Maybe this is a feature Dave could add to the swap. The easier the swaps are to use the more inviting they will be for other members to join in on the fun