I sure wouldn't discourage them. Fishing is fun and if you can catch a few to get paid for, all the better. I don't really target them but sign up occasionally if I am getting into a few when I am Bass and Walleye fishing. Even if it is just 1 or 2, I'll turn them in. I've got a check station close to me though.
I caught 4 of these big ones yesterday, and lost another. Also caught some nice Bass. No Walleye but a fun day on the Kayak. I am usually on my Kayak or my boat but have caught them plenty of times from the bank with bait.
The Pike Minnow website, someone listed above, says the opener has been delayed. Some good maps on that website too.
They hit a plug like a freight train when they are this big.