From [Advanced Memory Management](https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/MemoryMgmt/Articles/mmRules.html#//apple_ref/doc/uid/20000994-SW1):
> You create an object using a method whose name begins with “alloc”, “new”, “copy”, or “mutableCopy” (for example, alloc, newObject, or mutableCopy).

The prefix `new` is reserved and implies that the returned object is retained. I'm not sure if there's a problem since this is a `void` method, but I'd rather avoid it just in case. How about `didSaveNewPost`?