The comparisson between smoking, poker machines and the sponsor programm isn't fair...
The sponsor doesn't kill you or get you broke or even addicted in any way or form...
I agree you might accidentely install the sponsor... people tend to click before they read a little to often...
But if you look on this forums or go to the help chat someone will explain how to remove it... (which is quite easy)
And the fact that (almost) nobody reads an eula (you should one time some are very funny
) is the users fault...
I don't use the sponsor programm... but if people ask me about it... I always say that installing it helps the development...
so in a way I'm encouraging them to install it...
/ 
