I confess to having been somewhat exasperated by this thread. First it was apparent shoehorning of unmotivated OOP syntax into Julia, then it seemed as if Julia-is-not-at-that-stage was being willfully ignored, and finally the -- and --- operators were proposed. Maybe it’s just me, but I find those operators almost comically terrible, as if developers of the Brainfuck language had snuck into our forum and were drunk-posting just to troll us. And at first I felt the same way about /> and \>.
But on further reflection they’re actually starting to look pretty interesting and useful. As you say, /> and \> work together with |> as an extended family of piping operators. Yes, they can be abused to make illegible code but so can everything. And I don’t think newbies will find them more confusing than existing argument transformation syntax like f() do … end blocks.
So I’m tentatively going to click like on your proposal because I hope people like me who’ve been averse to this thread will notice and comment on it - especially those with insight into Julia’s parser who can clarify whether this is at all feasible. And kudos to everyone involved for persisting!
(But consider editing your post again to add spaces around the pipes. Legibility is everything, and you need this to be attractive to sell it.)