By changing that 'r.user_id' to 'l.user_id' you are now pulling the Links that the profiled user Owns with hrefs to the reviews of their Link.
The plug-in was written to pull the Reviews that the profiled user has written (about other people's Links).
Does that make sense?
I'm not sure I see the use in the revision that you made as the My Links plug-in already pulls the profiled user's Links.
I guess with the change you made the plug-in could be called "Reviews of My Links".
If that is what you are after, I'm glad it works for you. But the original code works the way I had envisioned the plug-in.
Sam Lewis
Moxie Media, LLC