> Anyway, given from the examples for me this reads as a language to write hacky onliners of code which are probably easy to write once but hard to read anytime

> Anyway, given from the examples for me this reads as a language to write hacky onliners of code which are probably easy to write once but hard to read anytime after. There is definitely a 'write-only' angle to concatenative (postfix) languages that rely on a stack. I think this type of language/approach is uniquely well-suited to this use case, though, where the focus is interactive use, plus short programs that are not generally intended for distribution, since you get the most out of the advantages around conciseness, without incurring the costs that come with larger programs.