Oliver Pereira wrote in part:
An author does not choose their IP address. In the vast majority of cases, they won't even know their IP address, or even what an IP address is! You cannot claim that an author is "choosing" to use a name if they don't even know what that name is.
True, the author licensed their work to the world completely anonymously, so I have no obligation to list their authorship except otherwise. That said, any author familiar with the practices of Wikipedia has a reasonably expectation that they will be identified by their IP address, so I believe that I really ought to identify them thus all the same.
It is common in ordinary printed works for authors with names shared by other authors to be disambiguated in some way, for example by the use of middle initials. It is also common to have a paragraph of text about the author, saying who they are, possibly even explicitly telling people not to confuse them with another identically named person. Reasonable lengths are usually gone to to ensure that different authors are distinguished from each other.
It's up to the author to do this, not the deriver. But again, authors familiar with Wikipedia practice can reasonably expect a link to thier user page, where they might place information of just this sort. That's why I think that derivers should link to Wikipedia rather than just copying down the author list.
-- Toby