I using Mac version..

Does everyone else have to click accept on the ToU agreement every single time they log in?

Yup.

Incidentally, complaining about it violates the ToU.

;)

WTF ?
Come on its just ONE click !

easy : "TAB - ENTER"

<0.5 seconds

Sure, it's not a huge drama..

But why do I need to keep agreeing to it?

lawyers, legal stuff, can't say that you weren't aware of it.