Max Rank on Casual "anything" should be 50

In fact, it seems to go both ways: high-ranked players who aren’t as good as one would expect, and very low-ranked ones who are incredibly skillful. For a beginner, for instance, rank progression is very quick, but competence progression not so much. As for how a low-ranked player can be so skilled, I don’t know. Regardless, rank is just not useful for making relevant distinctions among players.

However, developers should find a way to grant beginners and casual players a chance to play what would seem to them like a fair fight. I may be wrong but it is important that the game offers to everyone who is interested in playing it the possibility to fit in well.