An SO user [commented this](https://stackoverflow.com/questions/30811378/minimal-theme-feedback#comment49671490_30811378) on a question that would possibly be a candidate for Code Review:

> I think we need a three question quiz before you can post.

Of which it was said [in chat](http://chat.stackexchange.com/transcript/message/22165338#22165338):

> That's a distressingly reasonable idea

How could we word it so it's short enough for a comment, and friendly enough for the user to want to post it on CR instead of SO?

_Reminder: The character limit for comments is 600 characters._