Buttons in Pathfinder panel should be disabled when nothing is selected
If you have nothing selected, Pathfinder still have all buttons active, despite clicking one will give out an error message.
What’s a point? Why shout? Why not display a shallow message (like the one we get when a live shape gets expanded)?
Why not disable the buttons in the first place when a selection is empty?
Somewhat similar problem sometimes happens with Align panel. Despite one method for Align To should be always active, it is possible somehow to get NONE of them selected, all three buttons appear depressed. It leads to all other main buttons just doing nothing. No error pops even.