what are the disadvantages of not using exception handling application block or any other unified exception handling library. The only thing I can think of is that code will end up with different type of Try/Catch all over the place depending upon the developer. How can lack of planning in this regard, cause real world problems down the line?
I've recently began reading up on this topic myself. My basic understanding is:
Again, this is just what I've gathered initially. I think short answer to your question is maintainability and the potential loss of valuable trace information. Below are some sources: