Is it a good or bad idea throwing Exceptions when validating data?

Question

When validating data, I\'ve gotten into a habit of doing the following:

Note: I don\'t really have individual booleans for each check. This is just

Answer 1

In addition to the oft-repeated statement that "exceptions are for exceptional circumstances", here's an additionally clarifying rule I've come to like:

If the user caused it, it's not exceptional.

Exceptions are for system-side things (servers going down, resources being unavailable), not for the user doing odd things, because all users do odd things.