Originally Posted by
ThatT1Feeling
Also, apparently they're not worth doing at the moment. They're not yet necessary despite what is said and written about them. You also still need to fill in the green visa waiver form onboard, whether you have completed an ESTA or not.
If you need ESTA I wouldn't recommend not having one for flights to USA. Airlines deny pax w/o ESTA or visa. Yes it is annoying to fill in much the same info onboard on the visa waiver form.