In all this discussion of the concern about MySpace's terms, has anyone noticed clause 9 of the BBC's for their messageboard? Those are very similar, wrt the contributor granting the BBC a non-exclusive licence to anything they place on the BBC's servers.

http://www.bbc.co.uk/terms/

Namely

"Where you are invited to submit any contribution to bbc.co.uk (including any text, photographs, graphics, video or audio) you agree, by submitting your contribution, to grant the BBC a perpetual, royalty-free, non-exclusive, sub-licenseable right and license to use, reproduce, modify, adapt, publish, translate, create derivative works from, distribute, perform, play, make available to the public, and exercise all copyright and publicity rights with respect to your contribution worldwide and/or to incorporate your contribution in other works in any media now known or later developed for the full term of any rights that may exist in your contribution, and in accordance with privacy restrictions set out in the BBC's Privacy Policy. If you do not want to grant to the BBC the rights set out above, please do not submit your contribution to bbc.co.uk."