Welcome.
This is a fishing forum that has a high percentage of people who are passionate about fishing. I understand that you may be trying to prevent possible confrontation between poachers and passionate fisherman. The right to buy a fishing license also carries the responsibility to read the regulations. A duty to read the regulations. Mistakes and misunderstandings will happen, which are probably best handled by polite education at the scene as you described. Total disregard for the regulations will not be changed by polite conversation. Sometimes the difference cannot be determined without conversation.
Ontario where you studied has more lakes and rivers than here in AB. So does B.C. Fishing pressure is more concentrated on the few lakes we have than those provinces. People from there may think that we are crazy for driving sometimes over 2 hrs to go for a regular day of fishing. When people from here come across total disregard for fishing regulations, its not hard to imagine the results if allowed to continue.
Attitudes of catch as many as you can have taken years to change to catch and release.
The regulations are to help protect, preserve and improve the fishing here. Regulations alone will not accomplish that. I don't think anybody on here goes out at the start of the day with a John Wayne attitude of "lets catch poachers", they go to get fish on the end of their line.
Helping to prevent poaching is just as important as the regulations themselves.
