A few extensions could probably be uninstalled as they are long-time unmaintained:
- FancyBoxThumbs (extension is archived - 131 wikis have it enabled)
- AutoCreatePage (maybe? Unmaintained since 2017 - 180 wikis have it enabled)
- NewUserNotif (maybe? Flagged as unmaintained - 115 wikis have it enabled - alternative does exist with NewUserMessage (I believe))
- PipeEscape (maybe? Hasn't been updated in 2 years; flagged as unmaintained - 91 wikis have it enabled)
If none if these are needed to be uninstalled, feel free to close this task.