Page is a not externally linkable
Vadim - 1:02 am on Oct 6, 2004 (gmt 0)
It was new page and initially had PR0. Even now it has no inbound links and still had PR2. It got PR2 when all inner links to it had PR0. Seems pure experiment. It is possible but does not explains why the page with no inbound links and PR0 for inner site links to it got PR2. Most seems agree that good relevant inbound links has positive effect at least on SERP. Bad out bound links are indeed dangerouse but why to use them? Vadim/
The conclusions you ahve drawn have no real basis. Inner links pages, are less likely to have their pr removed, as they are indexed less often.
It is just as likely, your pages closer to home, were busted for doing something wrong, pr removed, then fixed so pr readded.
I am nto saying that links out have no value, just they ahve the potential to ahve harmful effects as well, whereas NO links out has no harmful value.