I do not think I fit there well, as the in-depth knowledge these lists may require is not really what I have. In general I know about 1-2 series total and there are other people who know more about it either way.
Well, even if it's for one or two verses, it would still be appreciated to list a name there, especially if there are little to no other users on the same verse. From what I heard a few people consider you the InuYasha expert; and no one has yet to add their name to that list.
In the case of staff members, you don't have to be an expert regarding a verse to add yourself to the list, just know enough to be able to help out with properly evaluating content revision threads, as this is part of the entire point of having a staff.
I done it with a select few verses. The only one I have yet to include myself in is the Pretty Cure series due to the lack of link but that's likely because we currently have 3 different pages for it, one for each installment. Since this long running series pretty much confirmed that all installment takes place within the same universe with the movies and baton pass episodes, I hope people don't mind if I construct a page dedicated to summarize the franchise as a whole while listing myself as a decently knowledgable member after including the link.