Comment by nine_k

In general, one's own words are the cheapest, and thus least reliable, form of signaling. If you call yourself "Honest Ed", it's pretty suspicious; if others unironically give you a moniker "Honest Ed", it's high praise.

Understatement is something only the renowned can afford; those who suck (or swindle) have to resort to overstatement and seek gullible audience.