That's not quite true. The exit node is capable of seeing what the traffic contains, and where it is destined for, but not where it came from. So as long as the

That's not quite true. The exit node is capable of seeing what the traffic contains, and where it is destined for, but not where it came from. So as long as the traffic it's self doesn't contain anything that identifies you, eg posting your name on some non-https forum, then you're fine. Unless the attacker is able to observe the entry node and exit node at the same time, and perform a timing/correlation attack.