Ever since I was in primary school I have hated giving religious words capital letters. It goes against proper grammar, and gives a heightened status that I feel is undeserved.
eg. God, Allah, Christianity, Him etc...
Jesus gets a capital letter as it is a proper name. Same with Mohammed.
I do, however, bow to this convention if I'm discussing religion with strongly religious people, so as not to offend.
Do others find this capitalisation all a bit strange?