Thread:Juraj103/@comment-31463564-20170609202548/@comment-27075564-20170710154747

The thumbnails are created by a wiki's community, they're not added in automatically by fandom. The few communities that did incoroperate it use them to try to make it easier to show what games/books/etc. a particular character or location appeared in. However, as it can be time consuming to set up and make it look right (not to mention wikia changing its layout style) it's not always practical.