Now you wonder why you do not get proposals. You can add your ideas and reasoning why ROS does not get any REPs, not just from me but from the entire ROS community as recently asked by @gbiggs. This is one of two things done by the OSRF in the last eight months:
Should I give that thread a little publicity, too?
But here, please help @AngleSideAngle by using your experience in Rust and Cargo instead of replying to me and making non-funny jokes.