Just because someone took one to trip to a specific place and did or did not get sick, has no impact on whether or not you will get sick in the same place. Saying "Barbados is safe" is meaningless, if you go to barbados and get sick.
You can get food poisoning any where, even right in your hometown. Like most things travel related, a little common sense goes a long way. There are tons of places thoughout the caribbean that are very safe to eat. Any many times when people get sick while traveling it was nothing to do with unsafe food handling. It's often from the stress of travel, eating foods your body isn't used to, etc, etc...