Investing isn't a "team sport". Given this, why would some group of investors try to come to a consensus amongst themselves for having held PTOI for 99% losses, even though the founder sold his shares back at $1.40?

It's called "groupthink". It's the most dangerous thing for an investor.

Quote:

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"Groupthink is a psychological phenomenon that occurs within a group of people, in which the desire for harmony or conformity in the group results in an irrational or dysfunctional decision-making outcome. Group members try to minimize conflict and reach a consensus decision without critical evaluation of alternative viewpoints, by actively suppressing dissenting viewpoints, and by isolating themselves from outside influences."
https://en.wikipedia.org/wiki/Groupthink

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