What do we do with our "points" on this site?

Short version: we don't do anything with them, we just have them to show others how much we have answered.

Long version: points are simply a means to show experience and credibility. You can't buy anything, but it signifies to other users how experienced you are with answering questions and therefore how much your answer can be trusted. This is not to say that someone with more points is smarter than someone with a lesser number of points, just that the person with more points has answered more questions. points also determine, in part, your "rank." Mine, for example. is expert. this has no other benefit other than letting others know how credible your answers are.  

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