Am I telling you to do anything? The only thing I'm telling you is that you're exploiting a loophole and the money you got is dirty. Just because you find a loophole in something doesn't make it not cheating; no matter how complex or simple that loophole is to exploit. I can call you a cheater or exploiter because thats what you are. Spend your time doing whatever you like. Calling it "smart" is sort of funny btw.
In CSS, if I find an exploit in a map that lets me run under the geometry and shoot people while they are unable to shoot me back, that makes me an exploiter. Just because the game lets me do it doesn't make it an intentional feature and fair game. It's not smart, it's cheap, but by all means, you're welcome to do it.
Okay, so the money obtained from this is illegitimate and the method, now that the real way has been patched, is also tricky, but that does not at all compare to your Counter Strike: Source analogy. The problem is, your talking about a full fledged exploit that does nothing but help you and only you at the cost of others. My argument is that I fail to see how people grinding a mission are able to do so at the cost of your experience and also; the method is smart if you think about it. For example:
If you read through a book and figure out a way to make a couple millions easy and legally in real life would you take that opportunity or would you keep going with the daily grind? That is the moral question that I pose to you.
Also, if you could explain clearly how others are hurt by the grinding of Violent Duct, I would seriously welcome that. Not even being sarcastic. I feel that it would help shape my view a little bit here because I just cannot understand that part of the issue.
Firstly, I wasn't saying the CSS analogy was 1:1, but it's very relevant. I was just using it to make it clear the difference between making money quickly, but legitimately, and abusing an exploit. It's also an example of how exploiting devalues gameplay. The goal of CSS is to get a high KD and frags right? Well if you do so by exploiting, it makes those frags pointless and meaningless to other people, you're also robbing yourself of gameplay challenge of course. It seems you've acknowledged the Violent Duct job is an exploit and the people using it are exploiters, but you fail to see how that exploit affects other players.
Now sure, the CSS analogy falls apart when you look at how directly it effects other player's experiences. However, when it becomes widespread knowledge, which it already has, that there exists a repeatable economy-based exploit that makes a large component of the game, earning money, trivial, it starts to effect everyone's experience. More indirect than killing people with exploits, but still very noticeable. The second you know about the exploit, you're going to do it, you're going to tell your friends, and pretty soon most people know about it and use it to get everything they have. Money becomes devalued, the things you get with it become devalued, and the game's entertainment value becomes devalued. Getting money drives you to do different jobs, like racing, death matching, hunting bountys, and so on. It forces you to conserve ammo, watch the number of times you die, and puts value on the things you buy. These are all gameplay elements that get diminished when loopholes like this exist.
Maybe you alone using an exploit to get money fast doesn't have a direct impact on other people, but you gotta look at the big picture. Many people using the exploit to gain a money advantage hurts the game and boils down money making into repeating a single quest if you want to be on par with everyone else. Let's not forget, money in this game means power. Better guns, better cars, more ammo, and more advantage over other players.
Also it's not smart to exploit Violent Duct because you don't have to read a f*ckin book to do the exploit; you have to watch a 5 minute youtube video... or just ask your friend who knows how to do it.