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.
I used to have a disposable phone number just for signing up but it was more trouble then it was worth. If the website is shady enough, I go look somewhere else.