Wouldn't it be nice to have an option to sort through Wishlists by items you already own?
Say you are looking through a friend's massive wishlist, and you want to see if you have an item, or a few items, that you already own that you can let go of. Sorting it by "owned" would show only items you have on your account. That cuts down having to memorize what you might have stored and forgotten in a vault or the wardrobe and also cuts down on having to "Search Account" for each item when you hover over the CI to see if you actually have the items in question.
Sorry if this is a lame suggestion. Its late and I should sleep, but its something I would use often. Edit: I also use mobile(desktop layout, always) 95% of the time. Another suggestion I have would be to add a confirmation window for deleting a Wishlist Category. I've accidentally deleted a category before and had to remake it and re-add all of those items from my "Unsorted" back into the category of whatever it was... sometimes hundreds of items. As is the curse of touch screens and screen bumps
I support this suggestion as well >Link<