panheadbolt

The deadeyes were caused by Ba-Ado-Mishram's imprisonment, which was because of the False Desolation. Any broken oaths cause the deadeyes in the modern day, as we see with Shallan and Testament.

We know Honor was splintered around the Recreance and that the Recreance was prompted by that generation of Radiants finding out humans were the real Voidbringers, and at that point Tanavast was overtaken by Honor's Intent and was also fighting Odium and so wasn't mentally stable enough to tell the Radiants that they were still morally okay. So what if the Radiants, having not a massive amount of guidance on how shards work, picked up on the fact he was fighting another god from his "ravings", and also noticed how he'd become obsessed with all oaths, good or bad and assumed that this was a consequence of the radiants existing. So what if they decided that they should break their oaths because they thought the oaths were what was draining Tanavast's sanity? Give just how powerful Surgebinding is, we can assume that 9/10 orders of radiant, with most of each type spren probably bonded, all releasing the Investiture they had (kinda) borrowed from Honor did something like in Warbreaker, where The Stormfather also backs this up: The Radiants didn't abandon their oaths because they thought they weren't in the moral right anymore, they abandoned their oaths because they were "try(ing) to protect the world".

We know Honor was splintered around the Recreance and that the Recreance was prompted by that generation of Radiants finding out humans were the real Voidbringers, and at that point Tanavast was overtaken by Honor's Intent and was also fighting Odium and so wasn't mentally stable enough to tell the Radiants that they were still morally okay. So what if the Radiants, having not a massive amount of guidance on how shards work, picked up on the fact he was fighting another god from his "ravings", and also noticed how he'd become obsessed with all oaths, good or bad and assumed that this was a consequence of the radiants existing. So what if they decided that they should break their oaths because they thought the oaths were what was draining Tanavast's sanity? Give just how powerful Surgebinding is, we can assume that 9/10 orders of radiant, with most of each type spren probably bonded, all releasing the Investiture they had (kinda) borrowed from Honor did something like in Warbreaker, where The Stormfather also backs this up: The Radiants didn't abandon their oaths because they thought they weren't in the moral right anymore, they abandoned their oaths because they were "try(ing) to protect the world".