User blog comment:MisterWoodhouse/The Future of Gamepedia/@comment-1276314-20201104211215/@comment-44721605-20201105134004

Why? Because few hundreds of wikis there are official?

Well yes, just there are official wikis, but there are some wikis called Dota2 Wiki, Terraria Wiki and Minecraft Wiki, which are so popular that they have over few milions of visits per month!

It was made as bussines, of course, but not because Fandom chill-out. Just because they got 50 wikis, and they wanted to move it on one platform. While Fandom was throwing its heads to wall (with updating), Gamepedia was making it in easy way, because its entire platform was just MediaWiki + Hydra + extensions, while Fandom was MediaWiki + Oasis (which is compleatly different skin and there may be problems) + so many incompatible extensions, that it was like inspecting every single file.