Does anyone actually believe this line of bullshit?
Honestly, if she was using the e-mail address associated with that SMTP server before she become Secretary of State, yes.
Most people don't like to use several e-mail accounts. It's a pain in the butt. If she was used to using that one and used it as she communicated with the officials that became her superiors and subordinates before becoming Secretary of State while planning the transition, then they were used to contacting here there and she was used to contacting them from there.
Should she have switched to a government-provided e-mail account? Probably. I don't say, "absolutely," specifically because of the high profile leaks that we've seen over the last decade, such that the mail might actually have been safer on that server that no one thought to compromise than on a government one.
As an aside, Governor Palin used private e-mail for government functions too, actually registering addresses with public mail servers (yahoo if I remember right) after becoming Governor of Alaska, and specifically citing her newly-found position as the account name. There was no prosecution over that either.
100% of participants also did not get lap dances from a Kardashian.
We cannot be sure of that. In fact, if her highly public behavior is any indication of her private behavior, the odds may be better than anyone realizes, depending on the length of the study.
To downgrade the human mind is bad theology. - C. K. Chesterton