Bernie culture is thin skinned,

and there is an element that is vicious and vindictive, especially online - that Bernie vowed to address but clearly it still exists.

I call for Bernie to immediately denounce any attempted doxxing or harassing of these people who merely asked him legitimate questions.

Life isn't fair and any candidate should be able to "take a punch": Hillary/Bill was pounded for 25 years; Obama had to deal with the Rev. Wright, the Tea Party and Birtherism; Joe Biden has dealt with all types of attacks including on his family, etc.

Bernie had it easy last time. Hillary, despite being cast as a villain by the right (and some on the left) was always a reasonable person who knew Bernie had no real path to the nomination because he could not win over key Dem base demographics (PoC, metro areas, etc) and thus could not win any of the delegate rich populous states. So she kept the gloves on hoping he would drop out after March 8th so she/they could move to unite the party.

This time it's not going to be easy for Bernie, the gloves will be off, and he should be prepared for that, and to get it from all angles since there are many candidates running.