Oops, didn't realize we were talking about something like that.
That plugin is a kind of neat idea (I approve) but it's very poorly named and doesn't seem to have anything in common with a real "web of trust." I'd probably be madder about the atrocious name if I didn't happen to like the plugin.
That gives me an idea: I should make a program for X11 users, where the five hundredth and ninth time someone opens a new window, it generates a PDF containing an extravagant statement of the accomplishment. Then I could call the program "X.509 Certificate Authority" just to fuck with everyone.
I also have an idea for an internet communications protocol which provides the social verification (the "proof" I think he called it) of Metcalf's Internet Teranodes Metric, but I'm trying to think of a concise way to explain that to people.
What's interesting about my MITM-proof thing is that it was computer-generated. I just had to provide the right seed (the "key" according to the software's docs) to the Pseudorandom Generated Proof engine. If you don't want me to explain how the MITM-proof works, I can just give you the PGP key and you can study the output yourself, in your own Virtual Information Monitor window, or Enhanced Markup Automatic Correlation Searcher if you prefer that approach.