Just an FYI: The reload message regarding the shortcut list that can be brought up with the "?" key doesn't actually apply to all people on the site. I don't have a QWERTY keyboard, and pressing Shift + ß (which creates a question mark) didn't do anything. By trial and error, I found out that for me, the key combination is Shift + # (which creates ' ).
It would be nice if that information could be made available, or if it were possible to make the function actually available through the "?" on non-QWERTY keyboards. Even though we may be on an English-language site, not all of your users are native English speakers, or are using English-language keyboards.