I really think that your opinion that what the moderators says becomes policy or anything else is what you are reading into it.
Paul starts out by saying that it was a cruise for Carnival lovers. He further qualifies his comments by stating that he is basing it on what other passengers say, then ends by inviting people with other cruise lines as their favorites to respond. Come on, how much more fairness do you want?
Also, you have said you would never go on Carnival, so how do you know that he is wrong?
And, dude, I so hope that you do not have a problem with authority figures, especially given your calling!