Woah there, you are making too many assumptions.
First of all, all that RGB offset does on my model is to proportionally change the red, greens, and blues WITH RESPECT TO brightness. If you lower them each proportionally, you are not distorting anything, you are just lowering the brightness that each color gets. If you then proceed to increase the brightness with the brightness setting, you are in effect supplementing for the lowered brightness previously. So no, this method does not change the accuracy of the picture quality, it only hides the automatic dimming of the blacks because you are tricking the TV into thinking that, given the increased brightness setting, it does not ever need to automatically dim anything.
Second of all, I did calibrate my display with the AVS709 files, and the tints of the colors remain unaltered. So saying that thing about my picture not being accurate just because I might like how it looks, without knowing that I take visual quality seriously, and without even asking me before hand, seems kind of aggressive to be honest. I tried to give advice to a fellow gamer who was also bothered by the automatic dimming, I did not force him/her to do anything.
Another thing you are assuming is that inky blacks is the same as crushed blacks to me. Again, if you had asked me what my meaning of inky blacks was, then you would not have needed to make that assumption. No, my blacks are not crushed. Inky blacks just means the deep blacks are no longer dimmed, so the deepest blacks that a game or movie has is now actually visible.
And again, the last sentence is not necessary. You don't know me, you had no right to assume I was just someone who has no knowledge of this stuff but gave random advice to people about how to get crushed blacks and what not.