For those unaware, this was famously stated as a test for hardcore pornography by a Supreme Court of the US justice in 1964.

Yeah. It's really bothersome.

I think the modern day equivalent is the constant huffing and puffing around where to draw the line for tech legislation, with the implicit message that 'if a line is hard to draw, we should not draw it' and a constant bad-faith battle for perfectly defined legislation.

The answer to 'where do we draw the line for this thing that has widespread negative effects' is always "somewhere".