At last, someone else sees the benefits of /o.
Then, the counter argument is: Use qr// which works and removes the need (most of the time) for /o...
I wish I could truly tie down when and why qr/.../o produces these benefits and when not.
Or is it all just a figment of my imagination.
The counter-argument that you shouldn't use /o because you might forget you'd used it sometime doesn't cut much ice with me.
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller