Yes.
Not me.
People have, your bagweed is probably good pot. It was just harvested, dried, cured, and handled wrong, in addition to being allowed to become pollinated. If you grow it well, harvest it at the right time, keep the males away, cure and dry it properly it will still be the best pot you've ever smoked.
That being said, around your 7th week of flower, you're going to wish your twenty females that are prepared to bless you with two pounds were of primo genetics. In the grand scheme of things, the bill you lay down for good seeds is going to pay off in the end.