I agree with Psyguy. I think think they would have these policies because they have had problems in the past. I think they also foresee problems arising in the future. I know staff who have worked in the IB and IB schools who say the IB sells lots of junk: posters, tie clips, hoodies, coffee mugs, etc. and that the IB could have a few landfills named after it. Some schools buy loads of this crap and the IB just loves it. But IB staff won't speak publicly about this. The IB is a money mill. Think of all the courses they offer to solve any and all school ills. I bet the IB's course offerings business model is similar to that of the Church of Scientology. I've paid for a few IB courses and thought they were pretty junky. Anyway, the IB itself says the policies apply to problems with the IB and not just IB schools.