Read my other note. Also there have been many discussions about Kovri, a Monero i2p implementation. It has been abandoned for different reasons.
There are follow up projects that seek deeper integration.
I'm sure that's why its github explicitly says, "Monero isn't made to integrate with Tor" source: https://github.com/monero-project/monero
Discussion
> Read my other note
Can you link to it? I don't know which note to look for