@lkanies If this is only implemented in Mastodon, then it would be local to your server. So you could prevent people to reply, but everyone except the users on the same server as you would see the replies, which is not good.
For such a feature to be effective, you need most of the software/servers to implement it. Yes, bad actors could patch the code, ignore this, and keep replying, but such a server would quickly be blocked as not behaving correctly.

@ArtBear @monkeyninja @paninid