Disabled or not, you still have a Ping Profile.
And as far as not being tied to FaceBookIt appears not to be now, but initially it appeared very much so. When I checked it out, it had a "find friends through Facebook" feature, as is discussed in a more recent AI article.
In any case, my gripe is largely with the whole state of the "Social Media' concept, as it now stands. Not so much just with Ping or with Apple.
There has to be a more satisfactory way to...