Okay, this made me laugh:
Back in my antitrust days I used to file a ton of "public comments" with agencies. At first I deluded myself into thinking these would have some impact. They never did.
Moving on to more substantive issues, I take slight issue with our friend
@carlosp on this point:
The ban on "professionalism" strikes me as the weakest part of the guidelines. There is nothing in copyright law that equates "fair use" with amateurism. I understand why CBS does not want guild professionals in unlicensed productions--as I've noted in a number of posts here, it raises a number of potential conflicts with existing union contracts--but there is no reason to believe that a work otherwise protected by fair use would be in violation of copyright merely for using guild professionals. Incidentally, this is why I've said before that SAG-AFTRA and the WGA should develop policy regarding their members' participation in these types of productions.
Now, as to the "enforceability" of the no-professionals rule, while I won't offer an opinion at this time on California labor law, I do think the studio's guideline could violate the Federal Trade Commission Act. I recall a number of FTC cases where the agency struck down informal rules adopted by private bodies based on the
perception that they discouraged "competition" in some area. I could easily see a similar case used against CBS if the government was inclined to bring one (not that I expect it will).