User blog comment:Semanticdrifter/Understanding Trademark/@comment-5028213-20130711180111/@comment-4811793-20130711191701

That's a great question. Using a trademarked image or symbol as a logo for your wiki is generally not a good idea, as it could imply that the wiki is endorsed by or a part of the rights holder. There are ways to incorporate these things, including emphazing the word "Wiki" and incoprorating other elements would help. Also note that including the wordmark in the title of the wiki is generally descriptive. So you can have a wiki logo that says the name of the subject, because it describes the subject of the wiki. Generally speaking, entertainment companies value fan engagement and only react when there is a danger of consumer confusion.