User blog comment:Ducksoup/Why We Don't Unblock You/@comment-5260227-20150920180505/@comment-4957813-20150923225236

That's for ADOPTING inactive wikis. And each wiki has a completely different set of guidelines for choosing admins. Some wikis may not care if you do make one. I don't mean to be rude, but you really need to familiarize yourself with the individual policy of each wiki you were on, etc.