Oh, cheerydawg, you really are my favorite poster. I cannot deny it.
1) How I felt about that is moot - because it kept Hillary from becoming president - but I thought it pretty careless of her.
2) Additionally, let's recall that this was more than thoroughly investigated by the State Department.
Let's jump to the conclusion shall we as revealed to us by that raging libtard Chuck Grassley:
No Persuasive Evidence of Systemic Misuse Relative to the Deliberate Introduction of Classified Information to Unclassified Systems
While there were some instances of classified information being inappropriately introduced into an unclassified system in furtherance of expedience, by and large, 'the individuals interviewed were aware of security policies and did their best to implement them in their operations. Correspondence with the Secretary is inherently sensitive, and is therefore open for broad interpretation as to classification, particularly with respect to Foreign Government Information. Instances of classified information being deliberately transmitted via unclassified email were the rare exception and resulted in adjudicated security violations. There was no persuasive evidence of systemic, deliberate mishandling of classified information.
3) Since then, of course, Jared et al. have admitted also using private communications systems for official business, and, of course, we know that Trump administration officials used private communications in their pressure campaign upon Ukraine.
So, you know... you didn't answer my question at all, but I am happy to answer yours.