It's always been strange to me that when I choose to trash a card from the supply with Lurker, I have to click "Confirm trashing". It just occurred to me that this is because I have "Confirm single trashes/discards" enabled. I suggest making this option not affect Lurker. Obviously it exists so you don't accidentally discard an action that you meant to play with your Oasis etc.; making me confirm my Lurker trash seems pointless to me.