Point System can be changed

I see many peoples gaining points by just posting comments in article and in other forums which has no meaning. Points can be given to 1) Article /Blog/News and other posting - no changes needed 2) Forum qestion and Answer Accept - no changes needed. 3) No point for any comment (With out value no need to give points for comments) Comments are used for 3 things as per my view, 1) Thanking for thier hard work 2) Asking question if they have 3) Share ideas to improve the question/Article or etc.