:: It is relevant. I found a gem there, in Wikipedia:Naming conventions (common names). It said "we need to temper common usage when the commonly used term is unreasonably misleading or commonly regarded as offensive to one or more groups of people." To use "Derry" instead of "Londonderry" in a reference source is upsetting to many people, and not just unionists. I'm not a unionist. I like reason and consistency, that's why it offends me. And please don't say that Londonderry would be offensive to certain groups. It's the offical name. It's like saying you don't like the word for bread, or Thursday. Btw, I know I can't change policy, I just like to make my voice heard on this issue now and again so that reasonable people concerned about the Londonderry dispute know that they aren't alone in the face of Wikibias.