The full FAA regulations covering controllers can be found at http://www.faa.gov/documentLibrary/media/Order/ATC.pdf.
Looking through the table of contents (page 25 onwards), I couldn't find anything related.
I also searched the document for the phrases: forum
, internet
, online
, discuss
- nothing relevant was found.
Furthermore, the ATCA (Air Traffic Control Association) has been running annual conferences on air traffic control for 58 years, withwhere they obviously discuss ATC; and they also have members of the FAA on the committee.
I've searched Google too, and can't find anything relevant.