As observation..
This discussion is a good example of purists who trowing away any new ideas just because they 'don't follow standard' or 'can be done with current syntax'.
Honestly i see no harm in adding a pipe '|' symbol as a special syntax symbol, like cascade ';' or period '.' A pipe is like continuation which simply does: evaluate expression to the left, then continue evaluation with expression to the right, taking left result as receiver. We need only minor changes to parser to add this syntax sugar, and no changes in complier because it don't breaks old syntax or message passing semantics.