Only creative works are protected by copyright law. So while written material may be protected by copyright law, the information in it is not, so the part about "information" being copyrighted is just wrong. Also, copyright protection ends a certain number of years after the work is created, so some of the written material and images posted on wikitree are not protected by copyright law. The person who creates a writing or image owns the copyright unless they have assigned it to someone. I don't recall whether, when we join wikitree, we assign all copyrights to writings or images we post to wikitree. If we post written materials or images that are still subject to copyrights owned by someone else, those rights would still be owned by that person, rather than wikitree. All in all, it is a very muddled statement.