Or choice of symbols and identifiers. People love to bash Perl, but Larry is definitely on to something when it comes to names and symbols, however flawed/misused the implementation in Perl may be; I feel like we're chasing the same ghosts.

An example is Snabels use of "|" for resetting the stack, "_" for dropping the top and "(..)" for grouping modifications; it smells a tiny bit like Perl in that it's not afraid of using what's available to get the wanted experience, but has a dramatic effect on code shape compared to regular mumble-Forth.