Talk:Open Database License/Contributor Terms/Human readable

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copyright assignment - why ?

While ODbL has a page describing why it was chosen instead of CC-BY-SA, the Contributor Terms have one other glaring difference for which reasons are nowhere mentioned (at least not where I could find it).

It would be good to explain why they require copyright assignment, while before they didn't, and why is it better than alternative of, say, each contributor dual-licensing him(/her)self under both ODbL and CC-BY-SA.

One good piece about advantages and problems with copyright assignment could be found here: