Pantheon is a browser plugin that let's you impersonate a random person online (provided that person also has the plugin ). Every time you open a new tab it opens as if you were that other person. You can take any action you want as that other person online for 10 seconds until the page fades out and is deactivated. We call the plugin Pantheon since it grants every user God Mode for a brief period of time.
By downloading the plugin you grant any other user of the plugin the power to impersonate you. In exchange you're granted the power to impersonate them. There is no way anyone will ever know who's impersonating who or when someone is impersonated. It's symmetrical and egalitarian - contrary to conventional backdoor access where one party generally abuses the other.