On the other hand, I do appreciate the relative consistency with "Sign Up". Because it's de facto standard, I know what to expect when I click that button. Sometimes I want to create an account and seeing a button like "Start Drawing" doesn't tell me what to expect.
Some of the ones in the happy medium seem good though, like "Create a Free Account" or "Sign Up Free".
“Start Drawing” taking me to a sign up page is more likely to make me close the tab since I feel cheated. It’s not called the standard “Sign Up” so I expect to be taken to something other than a sign up page.
Some of the ones in the happy medium seem good though, like "Create a Free Account" or "Sign Up Free".