It is easy to believe that if an exchange does not have any fees when it comes to your trades then this is good for traders, but this generates a problem, bots could be used in an exchange to try to create fake volume and make it seem as if it is very active when it is not, we already have problems to be able to tell what it is the real volume in this market and such a move by the biggest exchanges will only make the problem even bigger so I'm against it.