It’s not that they don’t count, it’s that they won’t go anywhere, and so aren’t going to dictate the actual contents of any actual future treaty. As I said later in the post:
Other proposals are actually trying to solve the problem directly. For example, the intentional equivalent of the ill-fated 1946-proposed Baruch Plan… Because directly solving the problem by fiat, imposed globally, before negotiations between parties start, is very hard and not usually effective.
It’s not that they don’t count, it’s that they won’t go anywhere, and so aren’t going to dictate the actual contents of any actual future treaty. As I said later in the post: