Any kind of cedar in tupperdor will stabilize with or without seasoning.
Respectfully, when giving some advice you should put some extra info out there. Like your statement, although correct, it is missing some information for the people who need it. It is true that cedar will stabilize with or without it being seasoned, however, just as dbach11 figured out, for un-seasoned cedar, you will have to keep adding humidity (which seasoning does) until the desire RH is met.
I am in no way trying to flame you, but offering my unsolicited advice for giving advice here on the forums. Sometimes incomplete advice can cause more problems then no advice. If you are not 100%, it is ok to say that here, after all none of are complete experts. We are all here to help each other with this great hobby and IMHO one of life's greatest pleasures.