It was a big mistake for Apple to ask outside developers to use a bug tracking tool that purports to be a user interface into Radar. I would much prefer a ticket system like those used at other companies. If Apple engineers triage a ticket and decide to open a Radar, that process should be opaque to the outside world.
Once Developer Relations made the decision to allow outside developers to create bug reports, Apple should have given us a modern, full-featured web interface. Instead, they gave us the ridiculous, brain-dead tool that you see at bugreport.apple.com, which looks like it was designed by an incompetent Cobol programmer (apologies to Grace Hopper).
If you find that "insulting", consider how it feels to be told to go through the work of filing dozens of most-likely-duplicate reports simply because Apple won't deign to allow searching existing reports. Regardless of whatever excuses they give for that, it sends a very clear signal about how Apple values the time of third-party developers.
What exactly isn't apparent? How Radar is the way things get done and you need to file a Radar if you want anything fixed? I'd think that's crystal clear given that every single Apple engineer you talk to will explain this to you.