While I agree with the logistical issues of making sure you don't accidentally make any money (hey, just pay me to edit with whatever's left over!) I wouldn't think of putting out a free EP campaign as working without Posthuman's blessing. They gave it a CC license for a reason. Their intention was to make it available for noncommercial user-created content.
I don't know that I would play it even if you did release it. Trying to re-create Know Evil could be fun, but it would never be the same, and there are so many themes to explore in Eclipse Phase. Maybe I would with a group that never heard it, but I doubt it would ever be as cool as the original. But I would definitely get a copy and read it and use it to steal ideas from you more than I already am... yes, my Firewall agents are currently working under Proxy Zealot.
I'm sad to see it go, but awesome ending to the campaign. [spoiler]And the game I'm running started a few weeks ago... thankfully Ross didn't go all Fox Mulder and ruin the internal consistency of my game by leaving Firewall![/spoiler]
Also, I've got to know, how did Manjappa become immortal before everyone else?