Okay, so how do you want them to be written? I assumed you were saying you didn't like that the boys didn't acknowledge that what they're doing is incest, thus my 'beating themselves up' comment; if that's not what you were saying, what do you want authors to write into their stories that you think is missing?

I don't really agree with that - once you've literally been to hell and back, I can't imagine a little incest is going to keep you up at night. But your opinion on that is perfectly valid, even if I don't agree.

But why can't that story fly? Who says that Dean wouldn't put everything he's known before aside for Sam, get himself on the Internet and do some research, and come back a much more enlightened version of himself. For Sam. I could see him doing that for Sam. Maybe not for anyone else, but I can see him making that kind of effort for Sam. Much like it would be perfectly valid for Dean to not understand it and not be able to handle it.

And if the former storyline doesn't work for you, that's cool, but that doesn't mean it's an unrealistic story.

And that's my point - something may not be realistic to you, or handled the way you'd handle it, but that doesn't make that interpretation any less valid.