User blog comment:RABNerd VP/No-Stub September 2020/@comment-5161575-20200902175904/@comment-36945580-20200903221228

The wiki will actually tell you if you're trying to remake a page that's been deleted! Message the admin who deleted it and ask for a restore, and they'll do it. Just make sure to add to it once it's been restored so it doesn't get deleted again.

You can find stubs that are about to be deleted at RABNerd VP's Deletion Check and pages that have been deleted in the deletion log. :)