> the absolute worst case of using Tor is no worse than the best case of not using Tor
While this is true I just wanted to point out that one does in fact not need *all* the nodes. It is possible to perform traffic analysis and infer which nodes are used by a certain user even if the attacker only controls a part of the nodes. [1]
While this of course doesn't change the fact that using tor is a good idea, one should not let themselves be lured into a wrong feeling of security when using tor.