PGP: The flamethrower (kids love this one)

All of those things are liabilities (I read them carefully and mentally checked them off one by one; I'm not just being rhetorical). I wrote a sibling comment going into more detail, but happy to answer questions.

Each of these bad in a different and exciting way, if your idea of exciting is reading mailing list threads.

(The idea of trust networks is not bad. But PGP’s implementation of them is bad.)