As other comments said, this wasn’t exactly a “little guy” in rank.
He also made it all very obvious and traceable for them through the email addresses he used. From the report it doesn’t appear that he made any effort to conceal his identity or hide his tracks until afterward, by which time it was too late.
Well, if people in Congress, the Supreme Court, the administration, etc. don't have to conceal their "activities", why should this guy?
He wasn't a "little guy" but apparently his only mistake was not being high enough.