RE: C-d deleting region considered harmful

[Drew Adams]

> If you just want to reactivate the region, the proper 
> keysequence to do only that and nothing else would be
> C-x C-x C-x C-x (otherwise you also move point).
>
> So one could make this reactivate only on second call
> (like C-SPC does).  On the other hand, C-x C-x C-x C-x is 
> often used for checking "did I leave the mark just where intended?".

Yes, I mentioned all of that.  But C-x C-x C-x could activate the region and
swap positions, and C-x C-x C-x C-x could do so without swapping positions.  Not
ideal, but a possibility.

(But it would be better to find a simple key that is not used or whose current
use could be sacrificed.)