somePoint.moveBy(x: 2.0, y: 3.0)

as opposed to

  [somePoint moveByX: 2.0 y: 3.0];

most Objective-C code would get rid of the space too

  [somePoint moveByX:2.0 y:3.0];

Its just painful to type extra characters that don't do anything and don't help readability. Plus the weird splitting of the moveByX is still odd.

I still am mystified why they didn't just start with:

  somePoint.(moveByX: 2.0 y: 3.0)

to keep it inline with Objective-C and start working on giving the method names an overhaul that would benefit everyone including the Objective-C programmers.

The ones in between the arguments. The beauty of sending a message to an object has been replaced with a function call with a horrible syntax. I guess that's what makes Swift a modern language.