A person's homepage on the wiki has a name corresponding to the person's real name, the UserName. It is often used to sign contributions.
See also: TextFormattingRules, Wiki:WikiName.
This usage doesn't sound natural. A "wiki name" should be better used as "name of a wiki (project)". Examples: MeatballWiki, WikiPedia or NoSmoke. -- HelmutLeitner
Thank you Helmut, for pinpointing on this. To my great surprise even the term WikiPageName doesn't exist yet, so I suggest to collect and redirect candidates for WikiPageName there, similar to BeggingWikiPageName. -- FridemarPache