Compostable stickers for 5 Gyres

Why would 5 Gyres want stickers made from plastic? They wouldn't, they know plastic wreaks havoc on our planet, so they had stickers made from wood pulp and to be compostable.

These areas in the ocean are where plastic collects, literally hundreds of miles of plastic.  Kinda reminds me of 'stuff' floating around and around a toilet!