Uhh.. In the simplest most layman-est and probably pretty wrong terms the difference is this:
If you wanted to send money to friend C whilst remaining completely anonymous would you tell your friend B about it? Or would you just put the money in an envelope and send it straight to friend C?
If you wanted to send money to friend C whilst remaining completely anonymous would you tell your friend B about it? Or would you just put the money in an envelope and send it straight to friend C?