Well, it depends on why it's being attacked. My feeling is that Perl is an under-appreciated tool because it's not cool to like Perl. In the post I don't really try to defend Perl's actual flaws, which are many, but to point out to an audience that presumably mostly doesn't know Perl, that it can be really useful for some sorts of tasks.
I feel Perl is under appreciated because too many people have inherited badly written Perl code, and thought that languages needed to enforce readability.
Or wondered why blocks of code needed to be delimited once for humans via indentation, and once for a parser via curly brackets.
