I think downranking Wikipedia would make some information easier to find. Often a subject-matter-specific site has a better page than Wikipedia on a given topic - but Wikipedia has more google-juice, so people are directed there instead.
There is certainly value in presenting everything via a consistent interface, as Wikipedia does. But there's also value is subject-specific interfaces. And I find Wikipedia's notability criteria very problematic; Wikipedia can't be treated as a sole source of truth when it simply refuses to include any information about certain subjects. (E.g. I wanted to know about a band I'd seen once, so I looked them up on Wikipedia only to find no page; I wondered if I'd spelled them wrong or some such. Then I looked them up on TV Tropes and found a useful page about them.)
There is certainly value in presenting everything via a consistent interface, as Wikipedia does. But there's also value is subject-specific interfaces. And I find Wikipedia's notability criteria very problematic; Wikipedia can't be treated as a sole source of truth when it simply refuses to include any information about certain subjects. (E.g. I wanted to know about a band I'd seen once, so I looked them up on Wikipedia only to find no page; I wondered if I'd spelled them wrong or some such. Then I looked them up on TV Tropes and found a useful page about them.)