I'm with you guys. Why would anyone even consider an ice activity on an aerated lake is beyond me. Make it a ticketable offense if caught...
Also, there were some good "out of box" thinking on this done on the Calgary Fly Fishing forum.
http://flyfishcalgary.com/board/inde...howtopic=23003
Sometimes the simplest ideas are the best. I like the above ideas along with the ban on ice activities on aerated lakes.