I complimented an answer to How to summon an Invisible Stalker? in a comment today, and also requested whether the answer could be expanded to include magical items (possibly from Princes of the Appocalypse adventuring supplement, which has elemental themes), and not only spells as Miniman had done a beautiful job of detailing.
My comment was deleted, and I am befuddled as to why asking for an elaboration on a well-answered question is seen as deletion-worthy?