I'm kind of unnerved by this.

What if I want to submit one of my own links one day--will I wind up on your list? And if someone out the loop happens to stumble upon your list, will they think that I am a self-promoting spammer due to my inclusion?

You should probably change this list a little. Adding a comment or two about its purpose would be welcome, and including statistics such as submission ratios by each username would be nice and help to avoid such confusion I have mentioned.

Finally, how does someone get 'off' your list?