Good news!The entire game should be open only. I know that’s unpopular for some people. But it’s my opinion. Why? Because of what op described. He was contacted for help to solve a problem, because of in game actual risk and danger for his buddy. Those interactions are what makes these games fun.
inb4 the “We WeRe PrOmIsEd SiNgLePlAyEr” carebears. I know I know. Like I said, it’s my opinion.
With this new blocking feature, you can bet your sweet cheeks that the community will develop definitive and well-maintained spreadsheets of all the names of gankers for players to simply copy and paste into their in-game blocking tools. ED players are the patient type, so they'll have no problem spending the time to make definitive lists. Players will have no issue copying and pasting dozens upon dozens of CMDR names in to block. And yes, they will do each and every name one by one and will check that list weekly. Hell, someone will probably even develop an app that will give desktop alerts to let people know there are new names to add.
Then guess what? They will probably all come back to Open. Or at least play in Open fairly regularly. You'll have your wish.