Oysters- Chew or Swallow?

So I Prepared a few platters of local (introduced) Sydney rock oysters the other day and for the first time I noticed that some people swallow their oysters whole. To me that was a new and very unusual way of eating oysters. I've always chewed my oysters because I mean why wouldn't you? There's three distinct textures and flavours; the frill is slightly hard and salty, the main muscle is soft, creamy and sweet and the adductor muscle is firm and sweet like a mini scallop.
When you swallow an oyster all you get is the briney liquor without the flavors and textures.
So the big question is how do you eat your oyster and why?