Author scores, hub scores or whatever you call them, don't impact your search engine ranks whatsoever, so I wouldn't worry about it. I almost think some of us have a penalty, anyway - especially if you have been flagged, rated down, have a lot of outbound links, or have got in trouble on the forums before, etc. The reason why I think that, is because I have seen some people with loads of well-written hubs with poor scores, yet there are others with terribly written hubs with high author scores. In fact, I've seen some folks that only had 1 or 2 hubs that was obviously slapped together, and had higher scores than a lot of people.
Something seems odd about the algorithm behind all of that, to say the least.
The other thing that matters, is the no-follow/do-follow properties.
In the past, all you had to do was have an author score of 75 or higher and all of your links counted as do-follow, now they have recently changed that to 85 and up. If you link out a lot to outside websites, it seems to lower your scores, as well, even though the foundation of the world wide web is based on links, so go figure...