I know the first reaction reading this will be "whatever, the person was already mentally ill". But please take a step back and check what % of the population can be considered mentally fit, and the potential damage amplification this new technology can have in more subtle, dangerous and undetectable ways.
It seems to me that this is like gambling, conspiracy theories, or joining a cult, where a nontrivial percentage of people are susceptible, and we don’t quite understand why.