bluntforce - 4:33 am on Mar 11, 2011 (gmt 0)
It's pretty easy to add a couple thousand links, even if you don't really mean to. Find any prolific blog or site with many pages and get a site-wide link.
If we make the assumption that the site-wide is really only counted as one reasonably strong link, there could be ranking improvement while the rest of the graph is just noise.
Personally, I wouldn't throw caution to the wind, but take baby steps over to the darkside.