It is just my distaste for this trend I comment on.
I feel these are the two worst ways angst are handled yet they seem to get high praise which irks me to know end.
The future of warfare in UC.
It is not your annoyance I take issue with. It is your claim to be able to understand why.
In all honesty, I find it much more plausible that a character in a breakdown is simply a negative influence on the telling of most stories. They are focused inward, and thus become a black hole as far as interaction with other characters or the plot is concerned. They do not advance the latter and they only take in from the former.
Nous restons ici.
That's something you need to know. Your characters aren't independent from you. The more familiar you are with their thought patterns and what preoccupies them at any given point of the day, the more convincing they'll be to a reader.
You are a blowfish.
How much angst I use will very much depend on the characters in each given scenario. Some won't be seen to angst at all: they don't see a problem when a different character might have a breakdown. And, if the story doesn't lend towards me putting The Stoic into a situation that would show them angsting a bit, it won't kill me to just leave them be.
Doesn't mean that in a different tale that very character wouldn't cry a river. 
It depends on when you show them and what they're going through, I guess.
"It seems a lot of you want to make your characters into Determinator robots, because you're so tired, or unwilling of embracing inner pain."
This is a stunningly arrogant statement. Who are you, to claim you understand the minds of others from a posting here so well that you can read their souls?
Nous restons ici.