There are many writers who make living from writing on HubPages.
Like any success in life, nothing can ever come quickly and easily.
Dedication, determination and motivation are all needed in order to achieve what one desires.
It's important to set goals and targets. If you believe that you can make the most of your writing and if you can present your work in a way which will attract readers and keep them coming back than you are on a way to realizing your potential.
I have only joined 3 weeks ago and have already noticed that yes, HubPages can be profitable if I continue doing what I'm doing and even improve on that.
Since I know there are other people here who I consider to be my inspiration I have no fear or doubt that I can do the same.