I'm not talking about "doing what I like with it". Let's not miss who is trying to change the status quo here. It isn't the site. Someone made a post, presumably without a gun to their head, the site didn't do anything with it/to it, and now that someone is claiming the site did something wrong? Err, what?
No one is saying the site did anything wrong. What's being said is that just because a member of B3D voluntarily and freely publishes his work here, that doesn't mean B3D doesn't have to honour the author's legal copyrights. Unless you have a legal, signed contract to transfer ownership of copyright, the content is owned by those who write it, not by the forum that hosts it. A non-legal phrase in the T&Cs that fails to supersede statute copyright law does not transfer copyright to B3D.
It's a situation that rarely comes up, because people who post want to post, and because it doesn't usually mean enough to them to do anything about it. If you were to (say) bundle up the forums and start selling them in a book, I think you'd find more posters would become bothered enough to ask for a slice of the profits for the use of their copyrighted work.
However, say a member who did a lot of posting got banned. He could then have a change of heart and assert his copyrights over all his postings. He could formally revoke B3Ds right to reproduce his work electronically. In fact, if you look in the front of a paperback, most of the newer ones have a clause that goes:
random paperback off my shelf said:
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means without prior permission of the publisher"
The publisher is mentioned here because the publisher is the one that has got the current publishing rights (in most cases through an exchange of cash) from the author via a legal transfer of first, second, world, North American, etc, rights. Unless sold/transferred in some formal and legal manner, the copyright stays with the original author. Also note how the wording has been updated to take into account electronic reproduction, compared to a few years back.
If the banned member of B3D asked for all his work (in the form of postings) be removed,
and B3D didn't remove them, B3D would be breaching his copyrights. These are the rights he gets automatically in most western countries as soon as he writes anything regardless of the format, where it is published, etc. B3D doesn't get those rights merely by being a conduit of dissemination, any more than Microsoft does because you wrote a book in Word, or Xerox does because you photocopied it on one of their machines.