I share all your thoughts. Above all the fact that it can be very addictive. At the same time is a good place where to express yourself. There is also another thing that needs to be considered, people already found the way to overcome the algorithm and they created groups with bots that do the automatic vote to many posts. It can undermine the quality of the network even if I still believe that it is better to write here than on the other social networks. On twitter you are appreciated according to how brief you are, here counts more the quality of your post.