J Scott: I use a discount broker when selling because they are cheap and do work I don't want to do, but I don't have to be represented.
The ca dre commissioner was asked if there was a law or regulation requiring a licensee to disclose license status when acting strictly as a principal...he couldn't find anything. His letter is reprinted in a real estate book I have.
What some people do, including myself, when there is no agent in the transaction, is make a statement, usually in the escrow instructions, to the effect that "Seller is a licensee acting for his own account". This makes it clear you are a licensee but not representing anybody, so buyer could never claim he thought he was represented by you as a licensee.
There may be no law or dre reg that requires disclosing license status, but there is something in my local mls rules that says seller must disclose license status if seller is licensed. This is a local mls rule, to use their mls system, it is nothing more. And yes, any house I sell using mls has the statement that seller is a licensee, as required.
That's my take.