Just one of many good reasons to vote Greens in the senate.
If you do know the names of the members that comprise a party, then you can just as easily vote for the members specifically by name (and if you're too lazy to do this then how did you manage to haul your carcass to the polling booth?) If you're so ignorant that you don't know the names of the members that comprise a party, maybe you shouldn't be blindly casting a vote for them.