I accidentally made a tag I didnt intend (ad-cert). I intended to retag as ad-certificate-services that already exists. Can someone please delete ad-cert? Or will it disappear on its own accord from some maintenance task perhaps?
You're right: tags automatically disappear if there is no associated post (and if it's not a synonym), but thank you taking the time to let us know!
(Btw, in this case I manually removed it.)