Like you said before it only applies to amethyst users so it wouldn't stop people learning about it.

But you might be onto something, if people on amethyst weren't seeing him that would be enough for him to reconsider.

The shadowban doesn't actually do anything to prevent spam unless it's an older account, spammers and scammers make new accounts every day, they get called out quick.

People can mute spammers.

Mute annoying people.

It should be everyone's right to decide for themselves who they don't want to see.