It was a joke, a parody of how often HN itself acts as a pleb filter, specifically about telling people to "go back to Reddit", and it got flagged... two days ago. Mea culpa for trying to be humorous in the no-humor zone.

The commentariat already punished me. The system worked as intended, I paid a misdemeanor fine of karma for a misdemeanor offense, and I made a number of better comments since, and we should all have moved on by now. This wasn't something you needed to step in on.