**UPDATE**
I have clicked "Yes" to the contract multiple times since 9.2.5 launched and have subsequently been toxic* nonstop in the game and nothing has happened to me.
Not sure if this is relevant, I have also ended every toxic exchange with "lol j/k"
*Blizzard's description of "toxic" as described in social contract.
Oh man, you're in for a surprise when you find out what freedom of speech actually means.