Technorati Favorites – Is This Evil, Lazy or Just Smart?

I have just been casually observing what has been happening with a few memes, and one of those is what is happening with Technorati Favorites.
It is one thing exchanging favorites with people, that creates some interesting OPML data that can be used for all finds of things, but it is a lot of hard work updating lists with all the people who post comments etc.