The practice is old: the guy buys Mantra OM thinking he found a gold mine. When it crashes, he becomes an 'evangelist' of 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 fool down with them. In the market, poorly calculated hope is guaranteed loss.