User blog comment:Brandon Rhea/Intro to Wiki Modernization/@comment-27058814-20170306203355/@comment-20644-20170306204741

That's an interesting idea and it certainly makes sense from an admin perspective, but unfortunately it's not something we'd be able to do. A truly modernized wiki experience, from an advertising perspective, is going to have to come with consistency. Advertisers value that. They want to know that, if they're advertising on Fandom, they'll be able to know exactly what kind of ad placements they'll be getting.

If different wikis have different configurations, the less valuable the ad spaces will be. And with less valuable ads, the more ads we'll have to have on each page. We think we can have fewer but more valuable ads, which can help us reduce that clutter.