I asked myself the same thing before I started to learn Perl,
Perl counts with a huge (literally HUGE) community and with an unbelievable amount of modules that will help you get things done in matter of seconds.
So why people doubt before they decide to “dive into perl”
well usually new programmers feel insecure about learning Perl because it is an old-school language, some people think it might be hard to learn while others think it is outdated.
Well from my honest point of view, Perl is one of the best programming languages out there, it is extremely fun to program in perl, it might by a little harder to learn than PHP, but it's worth it, I have totally stopped coding in PHP and python. Now every general programming or web-development task I have to do I do it with Perl.