When I go to Dream, I receive, I believe the same bill as everybody else with the same info.. Contrary to what is being said here, there is a category of French customers who leave tips the same way as American do.... They are most of the time the true St Martiners, or long time residents, and majority of them are still using the US$ like in old time as main currency in their pocket, have Dutch side bank account with CC... The French that are not "leaving" tip are the newcomers on the island.. the one who left a system and brought it with them.... Remember, before hurricane Luis in 1995, St Martin was St Martin, and was very very little "France", beside it's culture and it's food. Everything changed after 1995.
Double standard may happen, I don't say it doesn't happen, but not in establishment like Dream (or I am blind and naive)...