I work on at least two dead wikis:
- LGBT Info (I’m an admin on there)
- Danny Phantom Wiki
It’s quite a labor of love for me, coming back to these wikis to create new categories and articles. At the LGBT Info wiki, this involves the creation of categories that leave out "LGBT" for non-redundancy.
However, this is complicated by the fact that LGBT-relevant articles need to be imported from Wikipedia and recategorized without "LGBT", and by the fact that, other than myself, there are very few other editors or administrators on LGBT Info, and activity is low on there as well. Plus, LGBT Info already has well over 4,000 articles.
Same goes for the Danny Phantom wiki, except that it has around 80 articles.
It’s not a thankless job, though. Besides the indexing by Google of articles both imported and original, it bring greater visibility to more specific and minute details of the overall subject than would be provided by Wikipedia’s own coverage (which regularly dismisses and deletes those details that are "non-notable").
Smaller wikis like those hosted on Wikia, however, need greater activity, in addition to far-better documentation on the import of complicated templates and bot support.
I’m simply working with two which don’t. But I intend to work with them until they can become attractive to new editors again.