A problem is that defaults are so powerful. If you default uploads to MIT-0 or something like that, it comes across like you're hoping people won't notice.
And if you default to all rights reserved (which is what Flickr does) relatively few people will opt-in to something more open.
And I'd add that I'm not sure how well most of the Creative Commons options work anyway. Unless you add your own watermark--which I don't like doing--to a photo, the attribution and photo get separated unless the user is being meticulous and probably even then a lot of the time. (I try to be careful but images get copied from presentation to presentation etc.)
Plus it's very tempting for people to choose non-commercial CC if they choose CC. But there really are very few interesting uses (except maybe education) that are genuinely non-commercial.
And if you default to all rights reserved (which is what Flickr does) relatively few people will opt-in to something more open.
And I'd add that I'm not sure how well most of the Creative Commons options work anyway. Unless you add your own watermark--which I don't like doing--to a photo, the attribution and photo get separated unless the user is being meticulous and probably even then a lot of the time. (I try to be careful but images get copied from presentation to presentation etc.)
Plus it's very tempting for people to choose non-commercial CC if they choose CC. But there really are very few interesting uses (except maybe education) that are genuinely non-commercial.