The main problem with this kind of sites is they dont follow the recip changes. I submit to only few of these LL but the first things I noticed off the bat is that Jay & PenisBot's recips are not updated, and Smutgremlin's recip looking not the way it should
I wish you all the best with this project but it will be really hard to keep it up to date especially if the database gets bigger. Not beeing up to day may actually do more bad than good for webasters who use your site