For the record, and speaking only for myself:
- I prefer MIT licensing for everything;
- I think that the license compatibility down-sides of BOSL have been underestimated by ECC.
The latter could mostly be fixed by dual-licensing the orchard
crate as BOSL/GPLv3, and I think that would also serve to dissipate some of the FUD that has been directed at ECC for choosing BOSL.