I have been assured that Appelbaum has left #37c3 and will not return for the remainder of the event, and I believe it.
Unfortunately the situation is more complex, and unless @linuzifer or other folks address this publicly I will share a rough outline of the situation at a later point in time.
It was an exhausting couple of hours, and I'm still processing.
And just in case: Jake, I know my original toot was shared with you: I regret nothing, and would confront you at any event I see you at.