Rollo Carpenter is a British computer scientist known for creating Cleverbot, an AI web application that uses a chatbot to have conversations with users. I don't have access to specific user data for platforms like Steemit, so I can't confirm whether Rollo Carpenter has been a user there. If you're looking for information about his activities on Steemit, you may need to check directly on the platform or search for any public statements or articles mentioning his involvement.

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