> but we still had an issue with loads of them prompting users into suicide, violence, or misleading them into preparing noxious mixtures of cleaning supplies, then we could have a discussion about exactly what extreme packaging requirements ought to be in place for distribution to be considered responsible.

Or, I mean, just banning sale on the basis that they're unsafe devices and unfit for purpose. Like, you can't sell, say, a gas boiler that is known to, due to a design flaw, leak CO into the room; sticking a "this will probably kill you" warning on it is not going to be sufficient.

In that extreme case the "packaging requirements" would be labeling the thing not as a boiler, but as dangerous explosive scrap.