Definitely, you must be very much focused on solving people's problem and that is one of the best ways of making money. People who write relationship books always make money because there are a lot of people around the world looking for relationships.The only thing that will determine how profitable the business will be is the quality of your content , not only the quality it must be something that people will be interested to read. Probably something that can solve people's problem. Consistency without customer satisfaction will still not be profitable.