Creating the IFDB must have been a labour of love, but I don’t imagine changing it all now would be! Similarly for the IFWiki.
I think I read somewhere that the IFTF were considering working on the IF Archive. It would be great if the other two sites could be adopted by the IFTF and all three combined. Or at least if their territory could be marked out more clearly - for example, it might make sense for IFWiki not to have pages on games.
With MediaWiki, the reviews could be on user sub-pages, and user pages can be protected so that only admins and the relevant user can edit them. But there are probably many reasons for MediaWiki not being suitable. It’s just the software I’m most familiar with and it seemed (at first) to be relevant to the thread.