If your goal is to help improve C++, sure, a shorter cycle time is better. If your goal is to use the language as a communication mechanism... having it change

If your goal is to help improve C++, sure, a shorter cycle time is better. If your goal is to use the language as a communication mechanism... having it change constantly underneath you isn't helpful in my experience. And it's not necessary to release a new standard to let people try things out; you can let people play around with new features without iterating on them as formal standards.