It's a right-click menu. Every damn right click menu in the OS, and every other OS for that matter, is hidden.
Is right-click too hard to remember? I mean seriously?
I don't use Windows 8, so I wasn't aware it was just a right click menu. Fact remains though it's 100% hidden with no indication of "Right click here to see the menu". I mean the start button said start and windows when booted for the first time would show the menu open on Vista/7 showing users where to access the options.
The right click menu does not have that. Yes all right click menus are hidden, hell all menus by default are hidden, but some are very easily seen/spotted.
For me, yes it is easy to remember and to use, 8.1 isn't enough for me to switch to 8x from 7, but I am sure there will people be people that do and there will be people that complain about it, it's a given.