It's not just about misusing the features - the person writing the OS made a bunch of trade offs in both design and implementation, and while those trade-offs m

It's not just about misusing the features - the person writing the OS made a bunch of trade offs in both design and implementation, and while those trade-offs might be the best for the scenario where they were made in (and they don't even have to be) it might not fit your scenario, sometimes you can get huge and easy (well the pain will come from remaking the parts of the stack you needed) gains if you can go down the stack and replace those wrong assumptions.