It says in one of the help-files that by staying alive for a long time you gain a few additional points towards %'s on top of what you would normally get. (Not a direct quote or anything, just the jist.)
From what I understand (I may be wrong of course) If Thorn dies now, by P-Kill or otherwise, all those bonus %'s are lost.

Thorn is a cautious type. He takes a granite potion if he goes exploring new areas and all sorts. He survives, and it has little to do with luck, just planning and preparation.
!!! STAB !!!

I can understand the losing %'s that are linked to exp. loss but I don't get why we lose the bonuses. Any chance it could be modified so we don't lose those bonus %'s?
I would just like to say that I appreciate the hard work that goes into the maintenance of the MUD and that it isn't just a simple wave of a wand that makes any alterations to how the game plays. Thanks for a great game!