Here's what I think. One of the Filipino core values, passed down from our small-town islander ancestors, is bayanihan -- community collaboration. That's exactly why technologies that facilitate online community collaboration are such hits with Filipinos.
I should thank Chloebs de Asis and her Capcom Team for helping me see the link between bayanihan and social media adoption. Their bayanihan helped start Pinoy Cosplay. Thanks, guys! :)