Credibility in online environmental conversations is rarely institutional and almost never credentialed in the traditional sense — it is performed through specificity and proximity. When a Bluesky user reported that a scientist friend with direct professional experience in water regulation had examined the AI-data-center panic and redirected it toward agriculture , the response was not skepticism but relief with an edge of discomfort. The relief came from permission to worry less about data centers. The discomfort came from the implication that the conversation had been pointed at the wrong target.