A lot of people are pissed off at Labor supporting the government's tax cuts, rightly so.
A lot of people are also pissed off at Labor voting against the Greens' motion to increase the Newstart allowance, wrongly so.
Money bills cannot be introduced from the Senate, which means voting for them means voting to waste time and money on a bill that will be ruled out on a point of order when it ends up in the House of Reps.
That's the reason Labor always votes against these types of bills.