[kittxkat]

Fair point, I asked that myself. See ErrantX's answer[1] which IMO totally makes sense:

> Why would I care about rewatchability? Speaking as a film buff; this is actually quite a good guide to the sort of movie it is (when combined with quality). If lots of people mark it good quality, but wouldn't watch it again, that implies that you have to be in the right mood for it.

If people mark rewatchability high, even if the quality rating varies, you know it is much more easy going film.

And so on. Combining data points is good :)

[1]: http://news.ycombinator.com/item?id=4417078