[catalogia]

> I mean look at those nigerian scams, they nab people every day and they are the worst in terms of efficacy.

That seems like a bad example to support your point. Nigerian scammers don't strike at random like lightning. If you aren't really stupid or really greedy, there is zero chance that you'll get scammed by those guys. They target people with poor cognitive abilities and people who are greedy enough to think they can scam the scammers.

They run dragnets looking for the rare individuals who vulnerable to their scheme. They are powerless if tasked to target a specific person unless that specific person by chance happens to be the sort of person their scheme works on.