As for most open source projects, all contributions are welcomed!
Any mistakes that are identified, either typos, logic mistakes, wrong argumentations, etc, should be addressed as Bugs in the Issues section.
Clearly defined proposals should be addressed as Enhancements to the Issues section, or, even better, as Pull requests.
Proposals should be accompanied by use-cases in C/C++, and solid argumentation why the new solution is more efficient and/or easier to use than existing solutions.
Please don't forget that the mission statement is to "define a modern C/C++ friendly architecture", so solutions that cannot be expressed in C/C++ need a very good argumentation to be seriously considered.