S'not an acronym it's an abbreviation. An acronym is where the initials make up a previously existing word - such as Perl Is Cooler Than Using Rubbish Executables, PICTURE - whereas an abbreviation just makes up a list of letters - Pathologically Ecclectic Rubbish Lister, PERL.
Back to the main thread.
Perl is cool for several reasons:
1) It took me about 20 minutes to get my first script running after not having programed for about 5 years (And that vas VB)
2) I can make things crufty and hackish, simple to read or if I don't like the maintainer obfuscated.
3) You can do lots of fun things with it.
4) Wall-ites, Perlies or whatever you wish to call them are helpful.
Elgon