One of our rules in our gym is 'Don't trust anyone that tries to sell you any powder.' I always wondered why my fellow Hacker News readers went ballistic again

One of our rules in our gym is 'Don't trust anyone that tries to sell you any powder.' I always wondered why my fellow Hacker News readers went ballistic against Theranos but remained coy about Soylent. I guess we are just as much 'sheeple' as anyone else.