>> All of these bullet points enumerated in the top post of this thread are just annoyances or surprises to someone who comes to Perl from another language.

And I think that my bullet points are mostly indifferent to other languages. I'd write same bullet points if I weren't familiar with other languages.
Also one bullet: I wanted to write that I little dislike assignment operator "=" (C lang family), maybe because firstly I was learning "Pascal" (":="), but stronger motive is that assignment has direction, so that operator hasn't vertical symmetry axis or symmetry point. I'd like to use symmetric operators for commutative operations, such as +, -, *, but for non-symmetric operations - use non-symmetric: =~ , <<,... But his rule difficult to realize, because then operators would consist of too much signs. Hm.. maybe I'd rather use "&~" operator for smartmatch, but it is a little more difficult to write.