He looks like he could be a Russian Blue.
@adminsys adminsys I know you think you answered my questions but here we go again: While it is nice to know there is nothing you could find that would block the user in question from the site, I also asked what the policy is about members: whether "avatar" cats or invented cats (like a cartoon cat) could be members, or just flesh and blood cats could be members. If there is no policy, that also would be useful to know. Please provide an answer to the question, that is, please provide the information requested. If all you can do is "look into it" please don't say anything.
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