I have absolutely zero issues with someone practicing any religion, no matter how insane it is, as long as it's between consenting adults.
I have serious issues when religion, or the lack there of, is used by individuals, businesses, the government, etc. as a judge of your merit or character.
I find anyone that judges others based on their beliefs to be incredibly hypocritical. People should be judged on their actions and whether or not they infringe on the rights of others.