Board Thread:Support Requests - Designing Your Wikia/@comment-27844399-20151206223353/@comment-26455689-20151207003612

You need to edit MediaWiki:User-identity-box-group-sysop on your wiki. It will require admin privilidges. There will be a similar page for the Founder text if you wish to change the text from All capital letters to normal text then use this CSS code in Wikia.css.

.UserProfileMasthead .masthead-info .tag{text-transform: initial;}

You can look at my wiki - Septimus Heap Wiki for an example.