Quote - Freebies were being ripped,  retextured and sold in different markets.

I pretty much expected this to be part of the cause.
This sort of thing is endemic and some people aren't very subtle about ripping of the figures included with various versions of Poser (I've seen and reported a site where someone was offering P6 Jessie as a 3DS download, and were using screenshots of Poser for thumbnails!).

Quote - The Princeton library was started because of this.

Interesting, I didn't know that.
According the the Princeton FAQ, they remove models that are no longer available (presumably from legitimate sources).

Quote - See,  some people weren't aware that they should place their name and a copyright tag on their models.

I doubt that it would have made much difference even if they had done (a copyright tag hasn't been a necessity for some time as those things which can be copyrighted are so by default, for all the effect that has).

Quote - And, everyone held 3DCafe responsible and pulled their freebies until 3DCafe tracks down all the ripped models.

So they won't be back anytime soon then.