My reply isn't exactly a comment on the most recent things, but that's because the moment I saw people taking offense I started skipping pages. I saw earlier on that people ended up putting a lot of words in ptgatsby's mouth, which ended up making a simple and true concept into a mess. It was directly on topic and I'm not even sure how anyone read into it as far as they did.
This is about intimidation. He plainly said the preconception directly resulted in the post conception. There was no place for anything in-between because the in-between had zero relevance. It was perfect cause and effect.
I won't speak for anyone but myself in relation to any of this. If it's different for other INTJ's, consider it the the fun factor of free will rather than a different type assignment.
When it comes to the example of "why do you believe what you believe" type questions... Yes, that will catch my attention and I may react in a less than nice way. However, it's not the question itself, really. I will catch it because I have a habit of doing the same to play with people I know fairly well. It's not the speaker's intention that will trigger it, it will be my own intentions when I have done it in the past that I see it as, for better or worse, and I'm sure that amounts to a personality flaw on my end. But, if it makes you feel any better I'll probably have a grin on my face when my back is turned.
Writing people off, for me, is not a form of death sentence. It's more like "I'll hit a wall if I keep in that direction, lets see what the other options are." As cold as it may seem, the priority is the priority, not the feelings of others. Admittedly, it's another personality flaw, but only in a professional environment. If my priority happens to be a significant other, that flaw has its moment to shine. So I can't justify getting rid of it completely.
If someone is "written off" it's quite easy to reverse it... Unless you flunked Special Ed. You just have to do or say something remotely intelligent. I'll admit to myself that maybe I reacted too quickly and underestimated you. If that happens, you're probably going to end up back to normal+1 in my head. Because I won't underestimate(translated to: a mistake) someone a second time when they have surprised me. But, at the same time if you're in that position and do something very stupid, I may take that thought back and it'll be quite a bit harder to change.
As for the "offensive" conversation, refer to me and I'll debate it if you want. I won't get offended. I honestly don't care if something harsh is said, I'd be a hypocrite and I'd never let myself live it down. I'm also quite aware of my flaws. If you're right, I'll say so. Just try to be clear when doing it. I can tell you right now it's not possible to generalize such things. All that will happen is I'll ask you to elaborate every single time, and that will end up being a pain for both of us.