first off; drop the attitude. That's the second time in this thread. Wind your neck in.
Second; you need to learn what you are talking about. Games are code - when it comes down to it, that's all they are. Whether you use an ingame memory corruption exploit or use an external piece of hardware to inject code is neither here nor there. Both take skill to do - whether it's finding the flaws in the code by something that you can do internally, or making an external device to do this.
It's arguable that simply utilising someone else's knowledge either in the form of known exploits or an already-made solution which bolts on and does it for you, are both unskilled acts. However I'd like to hear your explanation as to why externally coded solutions that rely on exploits IN THE GAME'S CODE is any less skilful than grinding to find the fault in the game.
Simply put, If you think that using the missingno. glitch, because someone told you about it, is more skilful than using a gameshark, you need your head checking. On the other hand, if you had discovered the missingno. glitch by yourself, and understand why it works (which probably led to you exploiting it) then I'd be more impressed.
A totally secure system can't be hacked from the inside or the outside. The fact that games can be hacked or modified, whether from the inside or not - is totally irrelevant. The fact is both are alterations of how the code was originally intended to be run.
Now, if by using the term "exploits in the game" you mean lousy features that the makers forgot to patch, like the numerous ways there used to be to earn money quickly in GTA V (without actually cheating, just by playing missions over and over) then you are comparing Apples to Oranges as this doesn't utilise any modified code whatsoever; it's just a lousy game mechanic, not an exploit of any form.