[ryan-c]

TBH, I'd be more comfortable using insecure public wifi than I would be using Tor.

Tor hides the source of your communication, and evades filtering. It does not protect the contents of your communications from eavesdropping. It's trivial to set up Tor exits to log traffic, and people do.

[GordonS]

If you're hitting a TLS-enabled site, then exit nodes can't see the content of your traffic, only the destination IP/host. Exit nodes also can't see your source IP, only the IP of the relay node.