Two things I've noticed since I've been messing around the site -
(1) If you add a machine on your 'Collection' under Wish List - if you double-click the machine to add notes, it's automatically moved to 'In Collection' - the dropdown for the list type only lists options for In Collection and History. No 'Wishlist'.
(2) Deleting a comment from a Location does not take it off of your "Pinside Karma". Had a script error on the page when was leaving a comment, and accidentally left .. 12 comments instead of the intended one. Removed all but the one, but karma isn't adjusted.
Cheers all -
-Me.