Well, that's cool and it's interesting if we can customize the ethereum address as we wish. Although in my opinion it is not very important in terms of benefits and functions, but it is quitely to make it unique by being able to customize and have the ethereum address as desired. Sorry, no offense. it's just my opinion.
Besides that, basicly I am not a person who is an expert in technical matters like this. However, I am sure that if my profession or hobby is in these kinds of things, being able to find the way you shared above, of course is an achievement and there is satisfaction in it. By the way, thank you for the tutorial, may be one day I will try it.