Board Thread:Support Requests - Getting Started/@comment-27640447-20170117124101/@comment-30311333-20170117125512

You should create a discussion or blog asking if they agree that you become a new administrator of the wiki, the active administrators should participate too, if everyone agrees I think that your adoption process should go ahead considering that the community is unable to promote new administrators at the moment. Of course you should explain this part so good on your adoption request.

Besides if you're having vandalism troubles and the active admins aren't helping you so much with that, just contact the VSTF, they usually won't help if there is an active administration, but you can show that you have tried to contact but there is no response, then, they will intervene.

Hope this helps. Good luck with that.