From a legal aspect, how is this going to last at all? IANAL but I was under the impression most meta-search engines operated in at least a semi-grey area because they don't spoon feed illegal content to you. Most just index the big trackers and (conveniently) don't discriminate between illegal and legal content. I feel like when you are dropping torrents into buckets more specific than "video" and "audio" (e.g. linking multiple torrents to a specific movie, highlighting the HD versions) any conventional argument against aiding copyright infringement is out the window.
Awesome site though.