No, he isn't, and the relevant Wikipedia article is very poorly written. PKI is a highly generic term. Webs of trust are just as much a PKI as a certificate-based system.
Everything you've said in this thread has been bang-on, and the replies you're getting are deeply depressing.
Can we at least agree that if we attempted a list of all the Xs a programmer needs to know before doing Y and made it law that nobody could write any software at all?
Everything you've said in this thread has been bang-on, and the replies you're getting are deeply depressing.