Anthropic banned me for "suspicious signals"

Anthropic abruptly revoked the author’s Claude Max account, citing “suspicious signals” without specifying the policy violation or providing examples, and required an appeal through an in-product form. The author notes similar bans affecting other paying users—including a colleague in the Philippines and several customers in Brazil, Singapore, and Malaysia—highlighting the opaque, automated enforcement that can halt productivity for individual subscribers despite high monthly fees.