It's an interesting idea. I am not sure if I can easily adjust to the syntax,
but this may be best to just ask matz directly (I think he suggested the
pipeline operator, and streem kind of also taps into that whole handling of
data idea too, so I just think it is best to ask matz what he thinks about it).
One slight concern is that there is a lot of syntax though, and some of
the syntax is a bit hard to read/see - in particular that weird **|> - that
is almost like an ASCII game, like the old animated moon-buggy if anyone
remembers that "game". :-)
Syntax expression should be considered too, in my opinion (remember
the old perl-inspired variables, which made it difficult to read some of
the perl code and intent behind it, such as e. g. $& $: $. $- $^ ... ok
I made a few up, but you get the idea).