People like that the cryptic Perl syntax be ambiguous and guess what you mean from context, because it allows rapid development of small programs, and Perl usually guesses right what you want it to do.
I don't know about Perl 6 but Perl 5 is terrible at guessing what you want it to do, and also it has completely needless syntactic distinction between ``lists'' and pointers to ``lists'' (that are for some retarded reason called ``references to arrays''). And a ton of other things that could be done right but were not because Larry Wall is a fucking clown.