As said before, castor angle is set on original assembly, and only frontal collision will vary it. If wrong, it will cause car to pull to left or right.
Camber is also set on assembly and should not vary unless strut or hub is changed. Camber will vary with suspension movement. It should be -1.5 degrees (top inward) with car normally loaded; compression or extension of front suspension will cause it to increase by about 2 degrees, to +0.5 degrees. It will not affect handling or feel, but will exacerbate uneven tyre wear.
Toe-in is critical for both handling and feel, so fine adjustment is provided in track rod adjusters. My method sets it right first time with steering wheel central, but Chris fears it will bend wishbones.
Rear camber and toe-in are set on assembly and should not need attention unless collision or failing track rod joints occur. I suppose it would cause 'crabbing' if way out. I have never known it. I would spot it when setting front toe-in.
Nice to see an old thread again.