[new12345]

I agree. Its most often the case that we arrive at problem to solve based on our own experiences/or troubles. A builders passion is fueled by his own problem and he can think of selling it if he see that the problem is present in life of others as well. Most successful products starts like this.

Trying to hunt for problem that others are facing won't is not at all motivating for a hacker mentality. And even if he is able to discover challenges of others he probably won't be able to execute the solution for it as neatly as he cad do for challenges of his own life.