Last time I checked the documentation (more than a year ago) the '-' flag was supposed to work, but in practice the results can be unpredictable. Google honours the flag, but DDG is a bit of a mixed bag.
To an extent. Understanding the writing process is vital for any editor. The reverse is also true. However, the last thing any writer needs is an editor who secretly wants to be a writer. That's painful for all concerned.
Wasn't it supposed to be released in 2015? People complain about Martin, but he's got nothing on the Dave. 31 years and counting since the last book.