Of course. Many will react through their own lenses of experience and bias, but I promise, all here will be welcoming of Temeraire once it is apparent he is your trusted friend.
The insanity is a natural byproduct of their age, it is thought - our dragons are immortal, and have been around as long as the world. Many of our gods are descended of dragons, and shapeshift into that form at will. And as gods are fickle, so, indeed, are our dragons.