What I find more concerning is that, at least in the UK, gmail seems to include the public IP of the sending device in the "Received" email header. Because I as

What I find more concerning is that, at least in the UK, gmail seems to include the public IP of the sending device in the "Received" email header. Because I assume that it's possible (not sure if legal in the UK) to buy the mapping from IPs to names / identities, this means that it isn't possible to use an unnamed gmail account in an anonymous way. I guess that most gmail users are not aware of this issue.