I think it would be a perfect idea, some kind of review information! But who will rank and review all these hundreds of programs??
That's the problem. Maybe a stars ranking will do the job. -

If ranking system is developed, why not add more options like those of
http://www.cnr.com . For example - screenshots, comments, release notes and more detailed categories (Not just, for instance "network" but "connectivity", "download managers", "email", "ftp", "instant messaging", "P2P", "RSS readers & news", "security", "remote access", "web browsers").
To be honest, all those things I mentioned are just additional extras, the important thing is that pisi works perfectly.