1: Kulinski's old tweets are the definition of "not policy" so by his own definition, he should not have expected a whole lot of vigorous defense.
2: Ana Kasparian sent Jimmy Dore that DM about her skirt to try and intimidate him into silence, so Dore went public with it on his show to derail her attempt to smear him. It worked and is noteworthy.
3: Kulinski is apparently part of the TYT Network, and a longtime business/political partner with Cenk Uygur, so there's more to this story that Kulisnki completely ignored. Convenient.