User blog comment:Craiglpalmer/Introducing Fandom/@comment-1370845-20160125174049/@comment-20644-20160125175212

Our original Twitter account now lives at @getFandom, but we do still have @Wikia. The @getFandom account will be used for Fandom since that account's audience was already primarily pop culture fans, while @Wikia will be used for site updates and will be managed by our Community Team.

In regards to Fandom being where you go when you click the logo, there are lots of SEO benefits to that and we'll keep monitoring traffic to see what continues to make sense for linking in the future.

For the community names vs fandom names, you're certainly not wrong that people can respond to "Fallout" and "DC Comics" but, for fans of those franchises, Nukapedia and DC Database are also very well-known names. We're highlighting the communities on Explore Wikia, so we went with the names of those communities.