The only two wikis I checked that mention it are both fanon wikis, which are wikis created for content that's not official/"real" and they usually say that on the main page. Checking out the wiki you linked, the wiki main page starts with
The One Piece Fanon Wiki began 29 July, 2008. Suggested by Yung Wun, the fanon was created with the intention of "sharing fun fan-made characters for others to critique in order to create realistic fanon One Piece characters."