>Windows Alice is not pc-98 Alice.
ZUN said she is.
>Now tell me what rule Kosuzu is breaking
None right now, we're talking about the story development that everyone thinks is going to happen the way things are going.
>Just accept Reimu isn't as pure and innocent as you thought.
She's not pure and innocent but it's not because of this, killing the jinyou was a good thing as jinyous' existence are the biggest sin in gensokyo, not killing it would mean that Reimu would have done something wrong.
I have no idea why people can't get that through their heads and think that Reimu did anything wrong by killing him.