we shouldn't push back on people wanting to learn but we should really point out very loudly that not fully understanding something like shorting can turn a small investment someone was fully ok with losing into a life altering bankruptcy due to a margin call.
Not that difficult to monetise, dead people are not known for calling the cops for burglary and funeral homes, estate lawyers etc would pay for leads.
Given the audience on hacker news it's not even the worst thing people here do for cash because it's only one or so victim at a time instead of hyperscale. Old school artisan crime.
Leverage can be a fearful thing.