[Rd] Pipe operator status, placeholders?

[Benjamin Redelings]

Hi,

I see that R 4.2 adds the underscore _ as a placeholder for the new 
forward pipe operator |> , but only for named arguments. The reason why 
placeholders for position arguments was NOT added isn't clear to me, so 
I've been looking for the discussion around the introduction of the 
placeholder.

By searching subject lines in the r-devel mailing list archive, I've found

     https://stat.ethz.ch/pipermail/r-devel/2021-April/080646.html

https://stat.ethz.ch/pipermail/r-devel/2021-January/080396.html

https://stat.ethz.ch/pipermail/r-devel/2020-December/080173.html and 
following messages

but not much else.

1. Am I looking in the wrong place?

2. What is the reasoning behind allowing _ as a placeholder only for 
named arguments?

take care,

-BenRI