See also: why many people don't go to the doctor.

Only if you're technologically-illiterate.

I've received many phishing emails claiming that my account has been hacked. So that is a case of someone "pointing out an attack" who is actually causing the attack. Even technologically knowledgeable people fall for phishing (I haven't though).

... which many people are.

What's your point?

Why would you hack someone and then tell them you did it (without asking for ransom or something)? Of course the person telling you has good intentions.

Not sure if you're being sarcastic, but there's a whole class of attacks that begin under the guise of "helping" the user.

A hilarious and interesting example: https://www.gimletmedia.com/reply-all/long-distance

Additionally: see all the drama and issues that consistently occur surrounding bug bounty payments, secure disclosure of vulnerabilities, etc.