We try our best - it is hard.
CureZone is actually hardly moderated - almost anything goes. The only time things are dealt with is when a post will lead to flame wars or there are personal insult (attacks). See the Posting Guidelines and forum description. There are links to these at the top of each forum and when posting messages.
The post in question was hidden because it had no reference at all to abortion. It was just about the bible. It would have been hidden if it was by any other poster, or if it had been about any other holy book. The reason stands, there was no tie to abortion.