Great idea. John would probably disable freepmail for that thread, or probably for those who would be “special” registered youngsters. If they are registered in the regular way, they would still be open to freepmail I guess.
There are several web sites that could be linked to the thread that are targeted to young children. Nick Jr. is a good one. Games, videos, etc. All directed toward learning.
Those are great ideas. You know, Nan, you would be a good one to oversee a Kid's Corner, but like Amy, I know you already are stretched to your limit, time-wise.