re revoking access to the "Klout Opt-Out" app. That's probably not a good idea. Without a token attached to your account an app can't know to leave you out of calculations. Without it you're just another unknown person whose actions will affect other people's clout scores. If you *really* want out of the system you should leave that in. I don't work for Klout, but I used to work for a company that did behaviorally targeted advertising and having something like that in place really is the only way to allow someone to completely opt-out. It seems stupid that to not pay attention to someone we would have to tag them, but that's just the way the logic plays out.