I smoothed those points off with fine wet&dry paper on both my current rMBP and previous MBP - no tarnishing as a result of removing the anodising on either.
This is a major benefit of the MBA. I was going to get an rMBP to add to my MBA. Now I'm less sure (I have problems with my hands). 15 day trial here we come.
the 13" pro is the only one that suffers from this in my experience. The airs have the taper that prevents it and the palm rest on the larger pros are big enough to prevent it. The 13" pro however is sharp as hell when typing
Why? Because, as a whole, Apple culture would rather blame the user. They'd rather blame the user than admit the product has a fault, and suggest it has a fault in the hopes that it will be improved in a new version.
Which is a shame, because it is through criticism that great products become perfect products.
Technically, it may not be a fault, I may be sitting at the computer in a specific way that may not be 100% perfect posture. But it doesn't matter with my Thinkpad... I can be reaching over to it inside of an air duct to find the schematic for an amp that I am working on inside of a ceiling and it's still comfortable. And my phone works regardless of how I hold it - why I have a Samsung & a Lenovo instead of an iPhone and a Macbook Pro. That's what makes it cool, I don't have to think about this nonsense using another product. I just sit and work, without hurt wrists based on how I type.