If I know the source of the water, French-side or Dutch-Side, then I make an informed decision. If I know that the source is the more expensive desalinized water then that's one thing. If I don't know that, or if I know that the water supply is free water from a cistern, then that's another. If I don't know for sure then I drink bottled water.

I've never had a problem on SXM. Neither have the vast majority of those who drink SXM tap water without a care. My choice is based on having a problem with drinking water elsewhere, and the great desire to never experience that again.