From a technology point of view, it wouldn't add much time to just photograph the map. (My scanner is tucked away upstairs.) I'm on a Mac with no PC virtualization so I don't use QR anymore unless I fire up my old PC. Since I can do analysis with the physical map, GPS track and embarrassing memories, I have enough info to learn from my mistakes without taking the time to put it online.
The biggest reason it's not part of my routine is that map sharing hasn't been part of our orienteering culture in southern Ontario. When I started orienteering, it was drummed into my head that paper or digital maps must never be shared outside of events due to copyright and liability concerns. When I first noticed people like you and PG sharing your maps online, I wondered why a lightning bolt had not struck you down!
Maps have been a hugely sensitive issue here; the Orienteering Ontario board shut down for half a year after the president and some directors resigned over an inter-club disagreement over map rights. Even as the current president of Orienteering Ontario, I'm still nervous when I have to discuss anything related to map rights with a club.
I don't think any southern Ontario Attackpointers regularly share their maps here but maybe they're sharing elsewhere using DOMA. I usually take my cue from the event organizer. If they post their map online (as we do for the DGL Raids), then I feel comfortable sharing it.
For yesterday's event, I think TOC would be OK with it and I know Wilberto is here to let me know if they're not.
You probably know about our O Cup handicap system based on age and gender. A male elite has a handicap of 0. A 65+ year-old woman has a handicap of 6. (Sharon Crawford would clean up here!) Everyone else is somewhere in between. For this race, we ran from the start to our handicap number, i.e. if your handicap was 3, you ran from the Start directly to Control 3. After #10, we entered the O Cup Box where we could skip a number of controls equal to our handicap. So with a handicap of 3, you would do 4 controls inside the Box in any order. Then return to #10/11 before continuing. Just for a final twist, we were allowed to do #17-19 in any order. For a city park, this was quite a physical adventure!