User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-7594114-20130803181243/@comment-3146930-20130803204022

It was actually the original creator's idea to call it Camp Half-Blood wiki, but for some reason he wasn't able to do so. It was renamed at a later date, I think even before HoO was announced. The name does fit as we have a collection of information from the Half-Blood universe, so we are a camp of Half-Blood information.