What's stopping someone from sending a link, then entering a bunch of fake salaries (by clearing cookies), to find out co-worker's salary (not one of the ones you entered, though they may all appear legit).
Not using a debugger is like giving up a knife and using a spoon to eat your steak. Yeah, you can do it, but why would you? Debuggers are invaluable when you encounter difficult bugs, especially ones related to threading issues. Being able to freeze/run threads at will comes in handy. Setting hardware breakpoints to see when particular memory locations are changing is also useful. Maybe you're just not using the debugger to its full potential?