There is a wizard to delete the images, but not the listings. However, if you organize your listings into folders, you can later on delete thatfolder and all the listings inside the folder will also be deleted.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .