Taking personal pride in not using a debugger is a bad idea. Sometimes it's the right tool for the job, and if your picking it up makes you feel dirty, you're only handicapping yourself.
But sometimes it isn't the right tool for the job. In particular, it enables you to deal with a confusing, poorly factored code base. The right tools there are the ones that help you clean the mess up, rather than making the mess more tolerable.
If you have a rational argument that proves that debuggers are only useful on poorly designed code then I would certainly be interested in hearing it. It is true that the worse the code the more frequently you need to debug, but that's a quite different proposition.
I'm not saying they're only useful there. But we both agree that they're very helpful in understanding a bad codebase. That's because they make bad code easier to handle. Which for some people removes the incentive to clean it up. Basically, they use debuggers as crutches.
