> Are they wrong? No, just different target audience. If you do not want to become a "power user", that is fine.
Complicated doesn't mean bad. I'm not claiming that PGP or GPG are bad technologies because they are complicated to use.
> My grandma can barely handle the TV controller. So what? I am really against dumbing things down, called "ease-of-access" or whatever they call it these days.
The "so what" is simple: PGP is not the right anti-spam solution for your grandma, or mine, or any users like them. This is the context of this conversation: is PGP a good-enough answer for how to establish identity for email in the interest of anti-spam and anti-scam efforts? And the answer is a clear and resounding no, not for the vast majority of users of email.
This, again, doesn't mean that PGP/GPG are bad technologies - they are very good for certain use cases and certain users.
So what is a good-enough answer for my grandma? :P
There's no great answer, unfortunately. Gmail and other off-the-shelf email providers handle much of the spam and some of the scam prevention for you, but you still need to exercise caution on your own.