Not sure what your pointing out. Most developers already know this(or should), and dolphin already does this. Has for many years.
So i'll take a guess that you considered the fact that the article seems to be written Dec 2, 2014 and think it's rather hilarious as i do that it still seems to allude people.
I have not worked directly with passwords in Dolphin; I know you have. So you are telling me that we only store the hash in the database? I thought Dolphin took the password at sign-up, or password change time, and applied the hash to it and stored the encrypted password in the database. See, it is true that you learn something new all the time :-).
The post is still valuable because of the knowledge of how Dolphin handles passwords.