As if this is the first time this has ever happened.

How many former officials used personal accounts about government business?

How many corporate executives communicate business via personal accounts to avoid legal discovery?

How many individuals communicate outside their main email accounts to avoid scrutiny or attribution?

Point is, nobody should feel superior or shocked that such things like this happen. I understand some enjoy the privacy of their perceived enemies being exposed, but IMHO, nobody should be happy about invasion of anyone's privacy.