It will do neither - it is just a reflection of your standing with respect to the other hubbers.
With respect to the effect on hubs, all you have to do is maintain your hubscore above 75. More details about hubscore is available here :
An extract from the above hub:
"If your Hubber Score is below 75, it will cause all outbound links you've put on all your hubs to become nofollow. This means a consequence of very little or no benefit in terms of search engine rankings (it is of little SEO value, Search Engine bots/spiders crawling and indexing your page will go no further... they will not follow the link)."
Other than this Hubber score doesn't have any direct effect on your hubs .