EDIT: Okay, so this is pissing me off. It says "To delete entry from memorable entries, enter a blank description." I have done this, and deselected things on the list, and it doesn't delete them - it just moves them to one called "Uncategorized"! How the flying fudgemonkeys am I supposed to delete the damn things when the GIVEN INSTRUCTIONS ON HOW TO DO THAT are WRONG?
Edit 2: Found out how! Just add &multidelete=1 to the end of the URL of the memories category I want to delete them from.