Is there any way to independently verify wishlists, or is it entirely private to the developer?

... just I'm seeing loads of these "my wishlists hit the stratosphere!" posts and I just thought...

1. Success begets success, so just convincing someone "this game is huge" can be enough to get people to wishlist it
2. It would be trivially easy to forge a wishlist graph that says you have 20k wishlists
3. I know from my own experience that building a big wishlist can be really hard if you're not fortunate enough to catch a trend
4. There suddenly seem to be a lot of these and I'm wondering if some aren't genuine