Why? Did you not know any better or just not care? In case you hadn't heard, Hillary Clinton ran a private email server during her tenure at State. What she did is possibly outside of government rules governing such activity. Perhaps it's even outside the law.
Firstly if you listen to the explanations of how the emails were set up, handled and managed, it seems convoluted and inefficient. Either she's okay with inefficiency, or else she had specific reasons to do this despite the unnecessary complexity. Please note - I am specifically implying nefarious reasons. If she had good reasons, we'd already know about it.
But beyond that, with the repeated evidence of Chinese hacking doesn't it just seem like a dangerous and unnecessary national security risk?
It seems kinda risky to me. It seems kinda not-ready-for-prime-time. It seems kinda self-before-country. Frankly it seems illegal, dishonest and disgusting.