Not a target of Yggdrasil. Use I2P instead.

[cofob]

Or tor.

[salvare]

Is there a successful experience in determining the user's real IP address by his Yggdrasil IPv6 address?

[Revertron]

Is there a successful experience in determining the user's real IP address by his Yggdrasil IPv6 address?

Only if that peer is your nearest peer.

[salvare]

Only if that peer is your nearest peer.

In other words, if a person does not know which public peer I am connected to, he will not be able to find out my real IP address. Is this possible only for the one to whom I am directly connected, i.e., the one whom I wrote in public peers on my own?

Well, it provides acceptable anonymity, actually.

And for someone I have wrote in public peers, is it difficult to determine my Yggdrasil IPv6 address if I am connected to several peers?
If yes, then it turns out that even for someone to whom I am directly connected, it will be very difficult to determine my real IP address, having only my Yggdrasil IPv6...

Actually this is a very good anonymity ) even though this is not the purpose of Yggdrasil )

[salvare]

And for someone I have wrote in public peers, is it difficult to determine my Yggdrasil IPv6 address if I am connected to several peers?

I found the answer to my question myself: those to whom I am connected can easily see my Yggdrasil IPv6 address using yggdrasilctl getPeers.

Well, it turns out, those nodes to which I am connected can reveal my real IP address...

Anonymity is not the goal of Yggdrasil 

[asgard]

The only way is to peer to other node only over other anonymous network like TOR and I2P, but even that can reveal information about you if you not set up a firewall, because an eve can test for applications running on ports of your ygg address.