But my point is, Satoshi himself mentioned that "bitcoin should be used using Tor".
I'm not familiar with that quote, do you know where I can find it?
He said things that were basically centered around that idea:
Bitcoin is still very new and has not been independently analysed. If you're serious about privacy, TOR is an advisable precaution.
I have thought about eventually SSLing all the connections. I assume anything short of SSL would be pointless against DPI. Maybe a better more immediate solution is to connect through TOR, which will be possible with 0.2.