i haven’t heard about that one at chambers street, but i have about the one at hoyt–schermerhorn streets. i guess the mentality of the mta is that “well if it’s not doing any harm we might as well leave it.” they already spend so much money, leaving these platforms instead of demolishing them isn’t the worst thing in the world. but yeah looking at those pictures, that platform at chambers street looks so nasty and crusty, at least the public can’t get to it.