Using pragma marks to organize source files is one sign that the person who wrote the class put a little bit of care into what they’re doing, but they can actually be more useful than just a way of breaking up an implementation file.
My favorite trick is to use how I name my pragmas to jump to protocol definitions more quickly. I always use a pragma mark before the implementation of a protocol in my source, and in most of the code I’ve other people write, they do something like this:
#pragma mark - Table view data source
A better way is to use the actual name of the protocol you’re implementing instead, like this:
#pragma mark - UITableViewDataSource
Now, if you command+click on that Xcode will jump right to the protocol definition, and option+double-click will take you straight to it’s documentation.