If you notice on the right hand side I added a top commenters. I wrote this wordpress plugin last night. It basically gives a link (not nofollow) to the top 10 commenters over the last 7 day period. So people who comment frequently get a reward. I mean you are adding value to my site with your input so why shouldnt I give you a link?
This is also a fun thing for me to keep my somewhat php skills alive. That also means you might see some errors as I play with formatting.
Also if I think you are just trying to rack up your comment count you will be blacklisted.
I do not mind giving people a link but those spamming comments just to get SEO value will not be tolerated. You know what you are doing dont make me explain it.