I think it’s a little different than that.
1. The runes were undefined.
2. The player had his character express a hope for what the runes might be.
3. The player rolled and received a positive result.
4. In light of the roll, and that the suggested purpose of the runes seemed feasible and didn’t contradict anything that was established, the GM decided that the hope was realized.
But it doesn’t actually require author stance by the player, and ultimately it’s the GM who makes the decision.
Yeah, I’m not suggesting you pick up any of the 5.5 books. I haven’t yet, and am unsure if I will. No intention at this point.
But the Warden’s Manual? That book was a lot more useful to a GM at like 64 pages than most GM guides that go on for hundreds of pages.
No, you insisted that this is author stance. But at no point must the player leave actor stance for things to go this way.
Haha yes, clearly when a player doesn’t even get to set their own goals, or if they do, those goals may never come up or may be impossible because of two sentences the GM wrote in a notebook two months ago?
Sounds totally player driven.