I still think that some are not following the slots judging by the size of some of the fish I saw on stringers on opener.
I think it's ignorance of the fishing regs. Everyone has to keep talking about it and the MNR has to post signs everywhere possible to educate those that aren't aware. Launch ramps, tackle shops, stores, trailer parks, cottage resorts, lakefront community boards, etc.
I don't personally keep walleye out of Pigeon Lake, because I would love to see that fishery come back to what it was years ago. I live on the lake and have been disappointed to see the walleye decline over the last 10 years, so I will do my part.
Panfish are way tastier anyways!