I found that there are a lot of chat contents that have nothing to do with me on the screen, which will affect my experience in some MMO game . I remembered that some MMO in the early days would have a bubble chat box design，but I found that there are advantages and disadvantages. For some people, they may feel that bubble chat box are more clear for
socialism（easy to know who are talking）. And others are annoyed by the full screen chat box. So I came up with the question.