What does this mean in practice? Who would I "say fraud" to? I see frauds every day, "crypto" being the most obvious one that won't get me into much trouble. Wh

What does this mean in practice? Who would I "say fraud" to? I see frauds every day, "crypto" being the most obvious one that won't get me into much trouble. What do I do about it? How much of my time should I devote to the cause? What if I think other more politicized things are frauds? How do I take up that cause at all? Unless you witness a murder or something, "saying something" is not cut and dried, certainly not with respect to something like theranos. That took a court case to prove, and a concerted investigative effort to build into a convincing narrative. Should everyone that had reservations or felt Theranos was a bit or a scam dropped everything and gone John Caryrou on them?