Ask HN: Stupid question but Can you trust hire-a-hacker type websites?

I was bored and browsing the kind of services that come up on the hidden wiki.

One such service that I noticed was hire-a-hacker type websites, advertising services like spear-phishing attacks, DDoS attacks etc… as well as just generally offering to ruin the lives of other people by hacking them in a variety of what seemed like rather uncreative ways.

What I wondered though was, are these just dodgy scam websites designed to exploit idiots of the internet who think you can just pay $500USD and destroy someone, or are these actually for real?

If someone advertises themselves as being prepared to ruin someone’s life by hacking their social media or whatever, wouldn’t a person like this just as likely take another persons money and not provide any service at all?