Encrypt all the things!

Setting up a TOR exit node is trivial though.

And if you set one up with massive bandwidth, you'll attract traffic away from the other nodes, and be able to read all the non-https packets.

Yes, but I expect the people who use TOR who the governments would really be interested in, Iranian dissidents, Chinese students, for example, would not be foolish enough not to use encryption for everything. Never mind the guy trying to hire a hitman or score some weed