...going to a friendlier, safer, diver friendly country.
Ever been to either Curacao or Bonaire? You'll not find anyplace that is friendlier, safer, or diver-friendly than these two!
Are there problems with petty-thefts related to tourism? Sure - just like anywhere else in the world. You wouldn't leave an expensive dive computer, dSLR camera, or your wallet on the front seat of your car in Grand Cayman, Hawaii, Florida Keys, Roatan, Barbados, St Kitts, or anyplace else in the Caribbean, Europe, Asia, Africa, South America, etc, etc. Hell, you wouldn't do that AT HOME so why would you expect to safely do so in Curacao or Bonaire?
Yes, it's unfortunate. But it also gets reported out of proportion...
- Bonaire and Curacao are specific dive destinations, with a higher percentage of divers vs non-divers than many other locations
- the issue is predominantly related to the fact that shore diving REQUIRES that divers park vehicles at remote/unattended sites - which is essentially every site in Bonaire and a great many in Curacao
- there is far and away a higher percentage of shore divers in Curacao and Bonaire than any place else in the world, so this problem will naturally occur more here than elsewhere, even if the overall prevalence (% of thefts per diver) is the same
Most importantly, keep in mind that a major factor driving perceptions is that this issue is only ever brought up when a problem occurs. No one ever jumps on ScubaBoard and posts a new thread entitled "DAMN! JUST RETURNED FROM BONAIRE AND NONE OF MY GEAR WAS STOLEN!" and then going on to write 1,500 words of excruciating detail about what WASN'T stolen, how much the gear that WASN'T stolen cost, that they DIDN'T have to replace the gear that WASN'T stolen, that they DIDN'T have cancel their credit cards that WEREN'T stolen, that they DIDN'T have to spend an hour at the police station to NOT report a theft that DIDN'T occur, etc. You only ever hear the bad news, you get lots of specific negative details, and you get it in an emotionally charged fashion.
Yes, it does happen. Yes, it's unfortunate. But you need to keep some perspective regarding the relatively low incidence/prevalence and balance that against the ease with which the issue can be avoided in the first place.
The recommended precautions are entirely reasonable and prudent, and other than the idea of "don't-lock-your-car-so-would-be-thieves-don't-have-to-break-a-window-to-check-for-valuables" are the same measures you would observe anyplace else. Follow them and you will almost 100%-for-sure not have an issue.