1) It isn't extracting that is the issue it is the feeding of the round where I feel the difference only word I can use to discribe it is clunky.
Feed and/or extract...Sorry.
In the past, cases were often designed with taper to allow easy (or even positive) extraction, particularly in battle situations.
2) I don't feel any significant difference in the different action lengths but then again I shoot all of the different actions so often that one is like the other too me.
3) Just tells me that they don't shoot enough...
To me, it tells me that some people don't really pay attention to what they are doing and/or can't tell the difference because they don't really know any better.
I've got a small range in my back yard and shoot a fair bit, so I guess we are all different.
I can tell the difference between operating a 22LR bolt action, a 223, a 30-06 and a magnum length action. I can tell the difference between a pump, lever or break open, too.