Because it's free. Or they learned it over the years (and began with it, because it's free). IntelliJ is only $199, yet "professional" developers insist on us

Because it's free. Or they learned it over the years (and began with it, because it's free). IntelliJ is only $199, yet "professional" developers insist on using Eclipse. Like, $199 is too much to spend on your craft. Screw FizzBuzz...the first question on an interview should be: Do you use Eclipse? That speaks volumes, far more than a silly set of "if" statements and making use of the modulus operator.