I can post part of the message here:
Da du durch die DT-Rotationen absehbar in den nächsten Monaten wieder Teil von DT bist (aufgrund der Rotation bist du es derzeit nicht, was aber bloß durch eine für deinen Account unwahrscheinliche Zufallssituation zustande kommt), bitte ich um Anpassung des Trust entsprechend der Richtlinien: entfernen des Trusts oder Änderung zu neutralem Trust.
Trust zu nutzen heißt, das System zu verstehen und anwenden zu können. Ansonsten wird DT reagieren!
Mit Bitte um Korrektur bis 12.04.2022, 23.59 Uhr!
Understand that this is what the message says according to google translate
Since you will be part of DT again in the next few months due to the DT rotations (due to the rotation you are not at the moment, but this is only due to a random situation that is unlikely for your account), I ask you to adjust the trust according to the guidelines: remove the trust or change it to neutral trust.
Using trust means understanding and being able to apply the system. Otherwise, DT will respond!
I do not look at this as a threat. He is asking you to review your tags basically and make sure they are correct. That's what I take from it at least. Maybe he could have said it nicer? Other then that, doesn't look like any sort of threat or bullying.