Do you have the right to publish it as a book? If I do an anonymous submission I get:

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So everybody is doing submission only for publication as a Wiki at slinging.org? (Btw. Project:Copyrights is empty.) I would ask a lawyer in the country where the Wiki is or where the person is who considers doing the work to publish it as a book and if necessary restart the Wiki. (Better to think about legal things at the beginning than after all the work is done.)

Zwiebeltuete