User blog comment:Semanticdrifter/Understanding Trademark/@comment-5467597-20130715072600/@comment-4811793-20130715165703

Something that you write on the wiki is more likely to fall under copyright than trademark, since it would be a creative expression as opposed to something used to label the source of goods in commerce. Under copyright, your text contributions are released under the CC-BY-SA license, which means that other wikis can use them as long as they fulfill the license terms.