What are the pros and cons of keeping INT code

Our development server is set up to automatically keep the .INT code of compiled classes and routines, but the live servers are set to not keep the .INT code.

I know how to set the system to keep this code ($SYSTEM.OBJ.SetQualifiers() ?)  but what are the ramifications of keeping this code on the live servers?  Is it just a space issue?  I always thought it was to keep the code more private.

I am just wondering if there's a good reason to keep, or not to keep, the INT code on live servers, since it comes in quite handy at times when needing to debug or even to see certain lines of code that received errors.

Thanks, Laura