There's another consideration, you can introspect the stack using Error.stack (also Function.caller and friends?). It requires a spec change to say "it's okay t

There's another consideration, you can introspect the stack using Error.stack (also Function.caller and friends?). It requires a spec change to say "it's okay to not not includes these stack frames in specific cases". This information would also presumably not show up in the devtools / debugger or sentry, etc. I personally more agree with not implementing it implicitly (although I think there was some discussion about having a special syntax) just because of the potential for confusion during debugging. E.g. if all tail calls are elided, then you could have stack frames that don't "make sense" (how did function A call function C? well, through function B but that frame is gone, and this could be really difficult in deep stacks). Alternatively, you could use a heuristic but that just raises even more questions.