Obviously a private enterprise won’t publicly disclose the subscription status of its members.
Not so obvious to me. CH could write to Alcor/CI explaining what he’s done, and tell them he’s happy for them to disclose his subscription status for the purpose of verification. (Even if they weren’t willing to follow through on that, CH could write a letter asking them to confirm in writing that he’s no longer a member, and then post a copy of the response. CH might conceivably fake such a written confirmation, but I find it very unlikely that CH would put words in someone else’s mouth over their faked signature to save $500.)
Not so obvious to me. CH could write to Alcor/CI explaining what he’s done, and tell them he’s happy for them to disclose his subscription status for the purpose of verification. (Even if they weren’t willing to follow through on that, CH could write a letter asking them to confirm in writing that he’s no longer a member, and then post a copy of the response. CH might conceivably fake such a written confirmation, but I find it very unlikely that CH would put words in someone else’s mouth over their faked signature to save $500.)