Couldn't they just submit patches (even if they were large ones) rather than truly rewriting under the MS banner? That seems like less of a risk to me. If an op

Couldn't they just submit patches (even if they were large ones) rather than truly rewriting under the MS banner? That seems like less of a risk to me. If an open source community is happy with their D code (to make a huge generalization), that's their prerogative.