Is it more effective to master one freelance platform or to create profiles on several different ones at the same time?

[Btaliat]

Freelancing has different choices they can make use of. There are some times that they need to make use of different platforms. Doing this will let them have access to different clients. And this invariably will make them have more income for themselves. Also, it is possible for the freelancers to decide to have just one platform. Having this will allow the freelancers to know how much to make use of such a platform to his advantage. What do you think about this?