[Inviz]

I wonder if people who are claiming its not the case ever tried to use promises in hardcore ways like this, chaining 10s of thousands of calls. You often hit some bullshit, i.e. Promise.race is a big cause of issues.

Even if you are doing `then().then()`, something _else_ in the code base could retain the promise somehow and then your whole chain isn't GCable!

For example https://github.com/rxaviers/async-pool library that implements concurrency for async iterators (and uses promise.race) subtly creates GC pressure which you dont see until you make a whole lot of calls and suddenly its slow