It really disturbs me how often Church doctrine is questioned on this forum. I understand much of is not from Orthodox Christians, but it still bothers me.
You're not alone in this regard.
I think that most of the questions come from an honest inquiry. In the US, many Orthodox are former protestants who struggle greatly with the foreigness of such teachings. I think few people here have a desire to undermine Church doctrine, we (myself included) just want to "poke" it to see what the responses are. It helps us build our confidence in understanding what the Church teaches.