Punishing bad behaviour does close to nothing, because the problem at hand is one of high asymmetry between the low effort to submit vs the high effort to review. I do agree that paying for reports isn't ideal, and we should find other ways to level the playing field, but in the meantime I haven't heard of anything as effective.
> the problem at hand is one of high asymmetry between the low effort to submit vs the high effort to review
Hence the threat to shame publicly I suppose.
Actually, Daniel Stenberg previously responded to this proposal the same way as me [1] (and maybe would still do). Coincidentally, I was reading your answer at about the same time as this part of the talk.
[1] https://www.youtube.com/watch?v=6n2eDcRjSsk&t=1823s (via https://news.ycombinator.com/item?id=46717556#46717822)