This actually seems like a reasonably common attitude among indie-game devs (not universal, but not uncommon). The biggest problem you're likely to face as an indie-game developer isn't everyone pirating your game, but nobody ever playing it at all: the most common method of failure is the game that just never gets any traction, not even to the level of "niche success". In that context, piracy can often have more publicity upside than sales-losses downside.