TC39 delegate hat on: Participate in the proposal issues -- raise any that you find and/or help resolve ones that others raise. One area of concern is that due to the number of syntax proposals being presented, the language would become too "dense" and alienate the beginner. Balancing the power of the language while making it teachable and approachable is important. Feedback on the proposals from JS educators would be helpful.
This is so true. I still don't use arrow syntax since it looks like gibberish (or, more exactly, equal to or greater than) to me, despite me best efforts to get used to it. Those examples using pipes just make my eyes go out of focus ;-)