Well, bluntly, I don't see a reason why the empirical effects of the Great Curse shouldn't be known about - and come with pre-existing rationalisations.
So, people who know things about Solars know that the passions of Solars are greater than mortal men. Since their Virtue Flaws are an innate part of them, merely exaggerated by the Limit Break, then it's something they've always struggled with. The Solar with Heart of Tears has always found suffering hard to watch, but now as a Solar they find their heart breaking and all they can do is sob. Which is clearly just a consequence of being a Solar and mightier than mortal men - just as they're stronger, faster and tougher, they also feel emotions more strongly. People who've studied Solars also know that they find having magic that used with their mind stressful, and that if they're hit with it repeatedly, they're prone to temporary fits of madness as their passions flare. Which is, again, something which is totally understandable considering that they just had UMI used on them. Of course it's stressful, using the willpower of a hero to fight off such a thing.
(The Immaculates argue that this is just the madness that comes from the Anathema getting their power from demons, and so is 100% natural for a demon-possessed tyrant who has to be put down because they're a mad demon possessed tyrant)
Same as Dragonblooded. The Realm knows for a fact that the Terrestrial Exalted are just so full of power and elemental essence that sometimes their raw elements overwhelms the balanced chi of a sane human mind. No wonder they act in a way which has their Aspect dominating when their chi gets out of balance. The way to prevent this is to live a well-balanced life in accordance with the Immaculate Faith, not indulge to excess, and treat your fellow man in the proper way for their status.
And so on and so forth. Limit Breaks are clearly observable, so people will have noticed their empirical causes and the things that set them off. The Solar with Overindulgence has always known that it's hard work resisting vices and they have a temptation to just relax and go on a bender - so they try to keep away from their vices, but if they're forced to pass them over they will eventually sucumb. However, simply, there's no reason to attribute them to some 'great curse'. Not least, every Exalt alive today has never known any way of being different. Perhaps some of the Primordial War veterans might have got a creeping dread of some way the Exalted were... off, but old memories obscured by time and bloodshed are unreliable. So as far as anyone else is aware, they're just a natural part of being an Exalt.
Yeah, 'can detect the empirical effects but not the reason' seems to be the current ad hoc interpretation in the game I'm in. However, at this point I have to wonder:
what is the
functional difference between knowing about all the effects but not the name/origin, and knowing it with the name/origin?
Because with this interpretation, the Exalts gain justification to say "Jane goes berserk no later than on the tenth day if subjected to high amounts of direct mind-affecting magic", knowingly use Charms and tactics that reduce Limit accumulation, keep their berserking friends away from crowds when they're about to snap etc. etc. It really sounds like "Oh, in this world nobody knows about electricity; sure, they craft batteries and computers, but they don't know that it's Electricity, a phenomenon crafted by the great awakened ethereal mage Tesla the Paradigm-Shifter" (note: statement for illustrative purposes only; not saying that Tesla was actually the first one to notice the phenomenon).
I mean, at this point, it seems like nothing prevents a character from learning Integrity: Spirit-Maintaining Manoeuvre and spend motes in place of WP vs. UMI and Virtue Compels (which is not always preferable, but affordable), because a character does notice the effects produced by the GC, or the lack thereof. What is usually / can be done to avoid making the distinction in knowledge meaningless from a functional PoV?
It prevents a Yozi-like being from instagibbing them in one round, by letting them pay the costs of a charm or combo once, and activate it freely against all members of said being until his next action.
Basically, all the Solar's charms become action-long when he's fighting a networked being.
Remind me, does it make any difference if the Yozi-like in question is the head of a single unit made of its Third-Circles with its seven or whatever Third- and Second-Circle Heroes/Sorcerers?
Edit: apparently it is of no use in a War, at least no mention of such a use; also, it very explicitly says that it offers no discount against an Exalt who grows extra souls, though it does offer the discount against those souls if originally used against the Exalt, so it is important for Devil-Tiggers to be the last one to jump into a flurry. Teh weirdness.
Wouldn't that be a Shaping Effect?
Ah, Shaping! A very good thing to look out for each time one hears 'directly affects the character, no save', except I'm not quite clear on identifying them. I
think I read somewhere that any directly-affecting effect with listed no defense mechanism
automatically gains the Shaping keyword, but I can't find it. Is it (or something similar to it) actually written somewhere in the books, or am I misremembering?