Yup, I can’t count how many times I kept bugfixes, improvements, or tweaks to myself because the submission process is too complicated and user hostile.
This is honestly a problem with any submission process involving patch files. I’ve submitted a few via mailing list and I can’t express how much I dread seeing source controled this way.
Thankfully that wasn’t implied at all, and it’s not true that rust has more complex semantics (or, I think, syntax, although I could be wrong on that).
That said, it certainly is more complicated refactoring arbitrary data flows. There is certainly a cost for all the benefits! :)