I can think of a few opensource projects where it has not been, and have been involved in a few such successful projects professionally myself. It's certainly

I can think of a few opensource projects where it has not been, and have been involved in a few such successful projects professionally myself. It's certainly not something to be taken lightly or by people who don't understand the intricacies of the original system (Chestertons fence) but I think people are sometimes too reluctant to do this sort of thing.