When reading Python at anything over 3 levels of indentation I had to use a ruler to know what level I am currently in. Or similar, when there was multiple lines between two blocks or commands This was before I started using sublime text and I was very new to programming, also never tried Python in ST, to be fair! I mostly missed that visual cue where the block ends, I suppose.
It's difficult to elaborate on something that is a matter of taste, but some of us need our code blocks visually bookended.