Player Reporting system vulnerable to automated mass-report botting

## [MC-284912] Player Reporting system vulnerable to automated mass-report botting leading to unfair bans

* Status: Open

* Resolution: Unresolved

* Affects Version/s: 1.19.1, 1.20.4, 1.21, 1.22

* Component: Chat / Multiplayer Security

* Priority: Blocker

## Description

multiplayer bans without human verification. This mass ban reporting exploit completely bypasses standard server-side protections and allows bad actors to weaponize the safety reporting tool to grief innocent players, prominent content creators, and server administrators.

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## Steps to Reproduce

   1. Log into a public multiplayer server using a legitimate Minecraft account.

   2. Trigger an automated bot script (external to the client) to send 100+ uniquely signed cryptographic chat report packets targeting the innocent player's UUID.

   3. Observe the target player's connection status.

## Observed Result

The target player is abruptly disconnected from the server. Upon trying to reconnect to any multiplayer server, they are met with the official ban screen: "You have been banned from multiplayer Minecraft." No human review occurs before the ban is finalized.