User blog comment:Craiglpalmer/Introducing Fandom/@comment-24.184.71.143-20160127004105/@comment-213.120.234.130-20160127205815

There's a big difference. The wiki content is released under a Creative Commons license, so Wikia doesn't really own it as such, it just hosts it. Whereas with Fandom you are submitting the content to Wikia, who will then take ownership of it and are free to do whatever they like with it. They don't even need to attribute the author!