> Or the third to to illustrate the argument in another context.

This is still case 1.

I actually agree with you that some people with bad security habits will never change their behavior, but do you really feel that someone using passwords in a notebook because that's what they're comfortable with is in the same class of behavior as someone addicted to nicotine?

Feel free to have the last word here. 1 on 1 HN threads more than 3 deep rarely result in productive conversation. Cheers