RE: display.texi: (<line>,<col>) isn't documented.

[Drew Adams]

>     What about my original proposal (and code):
>     1. Show the region size (highlighted with region face) when active.
>
> I don't see that that is very useful.  The region is highlighted
> itself.

Yes, but its size is not obvious, especially if part of it is off-screen.

The size indication can be helpful when coding, to see how long a given
string of characters is. It can also be useful as a sanity check when you
use C-w.

Anyway, I take advantage of it fairly often, mainly for the first reason -
beats counting characters.