They didn't create an account called "Amazon AI", they created an account called "@AmazonUK" which is what was referenced in the original comment. @AmazonUK has a human behind the account, not an AI.
I would prefer humans not tell other humans to kill them selves because believe it or not some people actually do and some people really miss those people.
Would "@AmazonUK's AI" be clearer and satisfy you?