Yeah, hey, I'm back home and I pretty much got over it. Guess it was the end of a working day that riled me up a bit. Sorry about that. I've read the reddit theory though, I don't really buy it myself since I'm kind of biased in a bad way about the show now, but it's certainly an interesting theory.
I want to rest instead of typing up the huge post again, so I'll just address these two points and peacefully walk away to GMD.
Since when has Jamie turned back into "old Jamie". He has always been the same person, we've just learned more about him. The experiences of S2-3 probably made some difference, but he's still the same guy at he was before all that at heart. I don't know what you expect him to do differently.
Well, yes, I guess I'll have to admit that was expected from show version of Jaime, which is kind of far and away from book version of Jaime at this point. I, for one, miss his character progression from the books, especially in the AFFC, where he tried to balance and juggle his loyalty to the family, his twisted sense of honor and morality and actually starts to show some smallest seeds of a probable redemption arc. Hell, show-Jaime is still all over the moon for Cersei it seems.
I don't have a problem with people who dislike the show, no one is supposed to be all over it. I think what kaos is saying is that the nitpicking is, well, very picky. I think a case could be made of any and all coincidences on the show. 'Tyrion just had to be in the Inn that Catelynn Stark was..', 'Bronn just had to volunteer for Tyrion's trial by combat..', 'Drogon just happened to show up at the right time..' I think all these could be worthy nitpicking candidates, I personally don't examine these plot point conveniences that closely as literally everything could be a problem.
I guess the problem with plot conveniences is that if you're doing that in a moderate amount, it's alright, but if you're putting them in every now and then, it stretches credibility of the plot big time. And I know the "moderate" amount is a subjective thing - someone could be bothered by only a few of them happening across all the story, and some people will be fine with dozens of these. And for me, personally, plot conveniences regarding Brienne are already past that moderate amount. First she encounters Sansa in a random tavern, then she finds Arya and the Hound (okay this wasn't that bad - even though the guards at the gates turning them away without even raising an eyebrow and considering the consequences was bad), then she magically finds Stannis alone in the woods after the battle, then she arrives just in time to save Sansa and Theon... I mean, you probably can explain them all plausibly with some stretches, but that's just over the top in terms of plot convenience to me. It's like Catelyn would've met Tyrion in the tavern and take him captive, then found Jaime in the next tavern and take him captive, and then found Tywin Lannister strolling in the woods and whatever.
(Also, I know you were just providing it as an example, but Bronn volunteering for Tyrion made a lot of sense.)
In fact, I think I might've enjoyed the show more if I was just a casual fan, not very familiar with the books (as in, read them once), fan theories and the whole ASOIAF universe. Or maybe not. No way to know it now!