That popular beachfront place wouldn't be the same one where a waiter was writing in his own tips a few years back, would it?
One of the benefits of my SBH mobile is that the number that I give out is a 690 number, not the villa number.
People who know me have a pretty good idea where I'm staying, but I don't worry about those people. When I'm asked where I'm staying, I'm generally non-specific. Sometimes I say Lorient, sometimes côté St Jean, sometimes côté Camarouche. My questionable French language skills allow for some gramatically incorrect non-specicifity. And, with some people, I just flat out lie.
I've already had my one and only large villa party, so there's never a need to post where I'm staying here either.
Your suggestion of giving out the address of the police station reminds me of a friend in NYC. If he was unhappy with a taxi driver (incorrect route, talking on mobile, etc.) he would give them a new destination address, the Taxi & Limousine Commission.