Internal Exceptions

Can anyone think of a good reason to make an exception class internal?  I mean, surely the whole point of raising typed exceptions is so that people can process the exact exception that they’re looking at in the debugger.  It’s not like the debugger prints up “nearest public type”.  You can always make the constructor internal if you’re really afraid of marauding bands of developers intent on breaking your code.

And the offender that’s annoyed me so much?  System.Management.Automation.ParameterBindingValidationException.  Thanks, powershell.