You're aware this is a public mailing list, where everything posted here is already public right, and any police force who want to can already see it? And you're also aware that while you're subscribed to the mailing list, you will receive everything in said list? You can't tell the entire list to shut up because you don't want to receive them anymore, what you can do is unsubscribe by going here:
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays/