User blog comment:Brainulator9/Please unlock MediaWiki:Group-WHATEVER(-member)/@comment-4077536-20160118141705/@comment-8-20160118182656

"My wikia" is common enough, especially in a community's early days. Even if the community is more established, there can be a level of ownership. Communities can have different models of management, and one key person who decides on policies etc, is possible. Of course, the community could decide to get together and remove that person, but they might also be content with the situation.

Also, some people say "my wikia" when they mean "the community that I consider myself most a part of"  Or perhapes they mean something like a test wikia or another personal wikia. There are lots of reasons someone might use the phrase