Board Thread:Support Requests - Getting Technical/@comment-9605025-20160920233547/@comment-24473195-20160922073853

Wikipedia has loads and loads of IPv6 users ( https://en.wikipedia.org/w/index.php?title=Category:Medicine&curid=692348&diff=740628576&oldid=740628215)  and wikia definitely has some too, just not easily seen due to the number of wikis.

Also, the displayed limit there is not necessarily related to the last date  it fetches. There is yet another limit to how many revisions are fetched, the maximum for users is 500, and 5000 for bots.