Sure, the chances of finding an expert are low, but you'd be surprised how well it works. See, the tweet was posted to HN by someone and the chances of finding

Sure, the chances of finding an expert are low, but you'd be surprised how well it works. See, the tweet was posted to HN by someone and the chances of finding a Postgres expert here are significantly higher. More important is that the costs are low, even lower than writing to a ML. So why not try?