If public blockchains are considered harmful, people might buy tech for private ones.
Why on earth would you want a private blockchain? Just use Cassandra and be done with it.
Don't know, lol
Maybe they don’t trust themselves?
Maybe crypto companies don't trust their employees, because there's a strong correlation between employees who have no qualms about working for a company that perpetrates scammy cryptocurrency get-rick-quick pyramid schemes, and employees who have no qualms about stealing from their employer either.