Some usage notes are really useful to have alongside the definition, but you dont see them unless you click on the "show usage notes" option. It would be nice if the usage notes i liked could be automatically shown in a quiz when the answer is shown.
I personally don't use mnemonics much, but i think it would help those people too if they could immediately see their preferred mnemonic with the term.
A separate "pin this note" button would be ideal: there are probably interesting/helpful notes you'd like to give a like to without having them expanded in quizzes by default (vertical space is at a premium on phones, so if visibility was tied to likes, I might be a bit more hesitant to like things).
