Log out and take a look at the start page. It clearly states "Get $10 of Steem Power when you sign up today."! So the promo isn't done yet. They just "forgot" to connect the amount of Steem Power, new users get, to the actual current exchange rate.

"Make a good post, and you'll get vote!" is like your bank would tell you "Well yeah we promised you a certain interest rate on your deposits and didn't held up our end of the bargain.. but just go get a second job, then you'll get more money"