More importantly, it's distracting from the very real negatives about Sarah Palin. She is against abortion even in cases of rape and incest. She was an ardent supporter of Pat Buchanan for president. Run with that, for heaven's sake! (She is also a creationist, but her stance on that has been pretty responsible - she has not advocated for teaching creationism in schools and hasn't appointed creationists - so it's not clear how far we'd get with that one.)
I'm not sure there's a case to be made that she's anti-environmentalist, but it needs to be explored. I have read that she denies that global warming is man-made, but on the other hand she is one of the few US governors to do something about greenhouse gas emissions (she signed the Pacific Coast Collaborative initiative this summer). Her opposition to putting polar bears on the endangered species list is not anti-environmentalist: southerners who want the designation don't understand the north. Her support of Alaskan drilling is another issue I'm iffy on - I don't support it, but there's a difference between spoiling a park and increasing greenhouse gas emissions.
She has a lot of pluses: despite claims to the contrary, she has a record that can be examined, and it includes cleaning up corruption, selling the Alaska governor's private jet, and taking on US senator Ted Stevens. She has a baby with Down's Syndrome, and her public statements about him were a step forward for human rights. Her husband is a blue collar worker. She's a marathon runner. She has a son in the army who will be deployed to Iraq before the election. And she's currently nursing her baby.