I was thinking if the WoT every becomes as easy/popular as social networks, it will be inherently untrustworthy. Has the author forgotten about how common imper

I was thinking if the WoT every becomes as easy/popular as social networks, it will be inherently untrustworthy. Has the author forgotten about how common impersonation is on Facebook? And how many people access social networks from public machines or rootkitted/trojaned devices?