ahh coblin, i'd still rather more seats for the greens than for the homophobic liberals
Your principles are strong, and I commend that, but there needs to be room for pragmaticism.
These seats for the Greens are going to be in the Senate. In the Senate, the Greens do not introduce bills, they only approve or disapprove bills. Both the main parties have shown no resolve on social issues (such as gay rights), and that is not going to change. Voting for the Greens will not change their viewpoint on this. Instead, it will send a mixed message to Labor, influencing them on multiple fronts, such as regressive taxation, and the environment, rather than on gay rights. Since the major parties are going to be fighting around on fiscal policy (where to give tax cuts, whom to give money to),
the Greens will only have an economic effect, and if you subscribe to my economic beliefs, their economic principles are bad for the nation, and ultimately bad for the poor and aspiring lower-middle class who want to open small business.
If you truly support liberty (which would be concordant with supporting gay rights), and you do not wish to concede your values, place a vote for the Liberty & Democracy party, not the Greens. This will not send a mixed message to Labor, but in fact, it will send a strong and clear message to the Liberals saying: "social conservatism makes no sense! Get rid of it, and this plus responsible economic management would be a winner for everyone."