Why almost every website gives different results and predictions ?

Most of the astrological websites are made for advertisement of their products or their consultancy. To attrack people towards their website few things are necessary according to human behavior and tendency, apart from good looks and beautifully presented with many good informations, still people are not easily attracted towards the website because all they want is something FREE. It is so effective that in promotion of the anything with FREE gift gets more attention, though it may be relevant or irrelevant. Free just catches our attention fast, as we are inborn greedy. This is the reasons every website give general predictions, which actually cannot be correct for all people as every horoscope is unique and so will be the predictions. People jump from one website to another when they find a mismatch in the predictions as it is easy to switch site because its at the tip of your fingers to do so. They always feel that they would get their kind of predictions in the next website for free. People very well know that this websites are here for business so if they start doing charity then how they will survive, but the tendency of having it free elude them to visit these website.
In real if a person want to know something about him then he need to visit an astrologer and get his readings from him. Apart from a correct calculations and horoscope plotting, intuition plays a vital role in determining which formula and combination is to be used to know the resultant effect. A software or computer can have artificial intelligence but not intuition. Intuition is some intelligence given by God to the human being only and not machine or software.
So summarize in short a website gives a general predictions and not an individual one as it is not possible, so people will find different results and predictions in different websites.