On the second point. It's called meta-analysis and is an important area of research. However it's very far from operating automagically and requires substantial manual input.
On the first point this is equivalent to contracting a builder to build a house in any style.
Choosing a prior isn't always just about picking a wide band around 3 or a narrow band around 2. This is like the builder offering a choice of curtain colours from a swatch.
Making a commitment to implement any prior could be totally. Like the overcommitted builder being asked to reconstruct R'lyeh.
On the first point this is equivalent to contracting a builder to build a house in any style.
Choosing a prior isn't always just about picking a wide band around 3 or a narrow band around 2. This is like the builder offering a choice of curtain colours from a swatch.
Making a commitment to implement any prior could be totally. Like the overcommitted builder being asked to reconstruct R'lyeh.