It is perfectly alright to use the word carp and not rearrange the letters to avoid moderator intervention. I'll tell you why.
Some years ago I was in church and our vicar was talking about the time Jesus had his feet washed by some woman or other. He pointed out that the streets weren't as clean then as they are now and you walked in all sorts of stuff - pigeon carp and the like. The congregation went silent. It was no accident. He said it again later in the sermon.
On the way out of church he shook hands with everyone as was customary. I said 'Mark, are you allowed to say carp in church?'. He looked up to the sky and said 'I hope so'.
So, if he can do it so can we.