I don't like the automatic fixing things; however this plugin don't force you to use such. It's very good for finding broken links in comments and posts. It's very helpful for people to fix their links.
The only thing I don't like is that the links in posts and comments are all coming on one page without special marking that one is in comments and one is in posts. Usually links in comments "website" field are safe to delete without thinking. The links in posts must not be auto deleted - they must be edited and fixed... That's my opinion. But it's not a problem for the plugin itself - not a big deal.
GREAT JOB, nice plugin!