Which is bad because you want firm contact and support primarily on the ischial tuberosities. If the saddle molds too much, you're riding on mush and jamming your junk.

If you're sitting on the saddle correctly, your butt should be squarely on the saddle and you should feel two firm support points. If you're sitting on your pelvis, you're not crushing other tissue.

And nose down is usually not good. Because you slide down/forward and then your IT are outside the supporting area of the saddle on the narrow part. Then you have to push yourself back putting pressure on your hands and that makes your hands numb. It's a vicious cycle.