Because edits only exist in one client, it makes it possible to target that client using the protocol. To stop the attacks, you can 1. drop edit support, since it's not interoperable, 2. convince other people to support edits so that the attacks against amethyst become attacks against all complying clients (or 3. find some other clever way to defend).

Instead of resorting to character assassinations maybe we should take this opportunity to learn about how protocol attacks work, and improve on building consensus.