(Been using wallbase while it lasted, thks for going that way all over again.)
#1: Please add a forum search. (I was looking for a thread related to favorites management, randomly found it in "Planned Features". I could have manually searched longer but was lucky.)
#2: About favorites management: while drag&dropping into collections would be absolutely awesome, i think having a drop-down menu, instead of the the current "Remove from favorites" button, with the same kind of comportment as the "Add to favorites", would be way more practical. Default clicking would remove from favorites, and all drop-down rows would allow to re-class the favorite in another collection.