What is a libertarian?

See here

 It appears that when government sets out to solve a problem, not only does it violate our freedom, it also accomplishes the opposite of what it set out to do.

In this particular case, the author is discussing the government mission to 'help the poor'. Welfare programs do not help the poor. At least they don't help them to not  be poor anymore. Rather they encourage them to become ever more dependent on the government. 

This is not very helpful to the poor, but it is very helpful to the politicians who continue the programs and expand them to more and more people.