You might wanna read this article instead of this topic:
Hey there! This thread contains information about what could have caused you to not be able to send any message on chat, or to be able to send messages, but nobody else being able to see it.
These occour if you send any message in chat that breaks any server rules. Please check this article to view the rules.
These occour whenever you send any message with harsh/extreme language or post personal information.
Example #1 (harsh/extreme language):
Example #2 (personal information):
Real age reveal, credit card information
The Hive does not have control over these things, so do not contact appeals to The Hive because they don’t take control of shadowmutes. Yet, that was Microsoft/Xbox Live staff’s decision.
Contact Microsoft Support if you have questions about your suspension or why did your shadowmute happen.