First they tell you the types are optional. Then one day the type declarations are not, and you have to define "JSON schemas" or some such thing for other peop

First they tell you the types are optional. Then one day the type declarations are not, and you have to define "JSON schemas" or some such thing for other people's glop that you just want to shovel over a fence without concern of what is in it for most of the code. That's my nightmare, anyway. There are plenty of things that bug me more than "intellisense" (auto-completion) not working. Although type inference in my IDE on JS actually works well most of the time. (and I get to skip transpiling and source maps) YMMV, but if you want to understand how some of "The Other Side" feels, there you go.