@dsfgs
#Tor is designed for #anonymity and I trust it completely. I advocate for #FOSS and run a couple of Tor relays. Some further reading:
https://support.torproject.org/https/https-1/
https://tails.boum.org/doc/about/warning/index.en.html#exit_node

The key point here being that the exit node itself doesn't offer a layer of encryption, so the user must be using HTTPS, otherwise packet capturing is a very real threat.