Or you are just too narrow minded. The fact is, various frameworks "abuse" these runtime features to give you features such as kvo, kvc and Core Data, which you

Or you are just too narrow minded. The fact is, various frameworks "abuse" these runtime features to give you features such as kvo, kvc and Core Data, which you use every day. I guess you next "point" would be that only Apple should be able to "abuse" their own runtime to provide such frameworks, while programmers you "respect" must not. Please. Just because you and "programmers you respect" "don't want to see" legitimate featues, does not mean these features should not be there. Don't want them, don't use them. "Proud" includer of <objc/runtime.h>.