I have a confession to make: reading the ridiculous, sometimes offensive, and often outright gross / needlessly sexual conversation I saw in System chat while mining was one of the things that turned me to ganking.
The CMDRs making these comments were all in Solo or PG and I'm sure they thought it was "just banter" but it was enough to make me really reconsider who I thought the "bad guys" were among the playerbase.
Maybe this was my own version of "space madness," but jokes aside, I have to own that it was a galvanizing factor contributing to my decision to go to the Dark Side.
I get the sentiment, but 'punishment' should always be aimed at the individual, never the perceived collective. Having said that, Open is to real life what Solo is to online; being within punching/shooting distance of another person/player has a tendency to induce civility. Similarly, people who are fairly meek and combat-avoiding in-game often are Epic Forum Warriors somehow. Had a few instances years ago before I changed my forum name to my in-game name where I winged up with people in-game who posted some startling revelations about my family's history on the forums not knowing I was the same person. Interesting for sure.