The short answer is...there is no answer.

The TSA website has a "camping section", and they leave out one of the most important pieces of camping equipment.

If you ask the MyTSA application, you get a generic "check it in to avoid the chance" answer.

You won't find it on their prohibited items list, and you won't find it on their definitely allowed list either. It all depends on the whims of TSA, if they find it. If you decided to chance it as carryon, I would bring it along (sans stakes, as you said), and not bring any attention to it. If they have an issue with it, they can inspect it to notice the poles are thin, light, and connected. They'd be no more of a flight hazard than fishing poles, which are allowed. The safe answer would be to swing by the checkpoint first thing and ask the supervisor if he has a problem with it.