I just read the first 10 pages of this thread and theres some interesting stuff in it, stuff i didnt think of before. Stuff KT, riet, Iron etc have brought up thats probably outside of the original scope of this thread.
Personally i have no real actual "hatred" of any one individual or even of any ideologies, but i do hate how some adherents behave towards others. I have no problem with religious people who follow their beleifs and leave others relatively alone, i do have a problem with, for example muslims who beleive all non muslims should convert or die, if anyone decided to convert to another religion, they should be executed, women should be executed for the crime of being raped, stuff like that....it all seems very backwards.
Christianity is one of the more beneign religions i have personally encountered, maybe most christians in Australia are just more liberal, take things more as metaphors etc, i dont know. Despite this, it is still a religion, still based on faith and feeling and spirituality[which most logical, scientific minded people reject] and because they are the most numerous in Australia and the most prominent, they attract a lot of ire from atheists that should probably be more directed at religion in general.
TLDR: christianity is only attacked more often than other religions on here because they are the largest group