The practice is old: the guy buys Mantra OM thinking he found the gold mine. When it crashes, he becomes an 'evangelist' for the dead coin trying to push it up. It's not analysis; it's desperation disguised as advice.
These penny traders think word-of-mouth marketing will resurrect a dead project. Instead of accepting the mistake, they try to drag a sucker down with them. In the market, poorly calculated hope is certain loss.