1. Needing to hold the option key when right-clicking in order to even see an option for moving a copied item. I don't mind the use of copy->move instead of Windows's cut->paste but why does it have to be hidden? This is surely one of the basic operations you want to perform in a file manager!
2. Needing to right click and select "open" in order to run an unsigned app for the first time. This is a counter-intuitive and pointless ritual - there should be no difference between double-clicking and selecting "open" from the context menu. If Apple wants to ban unsigned apps they should just do it, instead of hiding a workaround behind a trivial trick that the unsophisticated users Apple is ostensibly trying to protect can easily discover by accident.