have you tried to make a no-KYC protom account lately? they require a "human proof" email address. if you are highly concerned with leaking or connecting identity, this is a no-go. I guess you could use lnemail to just receive this verification, but my point is that it is very difficult to create an email account without already having one - but lnemail seems to allow this (at least for now) so why not expand your market?