This makes me 😭
UPDATE: Thanks @nekusoul@lemmy.nekusoul.de for this update: The issue has now been commented on and was closed by the maintainer, where they explained why those blocks would be nonsense. But it appears the OP wants to still talk with maintainer privately about it.
Just reminds me of an idiot PM we had who after realizing you could do the + thing on Gmail addresses made the devs block it, then didn’t understand why qa and anyone else testing using those types of email accounts got mad when no one could get in or create new accounts