Related: Carnival Cruise Line answers key dining question. Very few social media personalities have built the person connection with their audience that Heald has. He, along with

Cruise lines try to avoid politics. That's mostly true for passengers as well. Yes, there's nearly always someone, or a few people, wearing provocative hats or T-shirts, looking for a fight, but generally people leave the politics at home.

Many cruisers do, however, worry about seeing their cruises throw their diets off track and many are looking for support while they're on vacation. One Carnival Cruise Line passenger recently made a request to Brand Ambassador John Heald.