I've never "worried" about it anyway. We've all been keeping records of id's and model releases for years before that even existed anyway.
Just slight modification of record keeping is all it amounts to. Basically a way for them to "Gotcha" if they ever turn their eye on you. Remember Al Capone went to prison for accounting discrepancies on his taxes. If the govt. ever comes after you, they are gonna find a way one way or another to put you in prison. Hell, look at Max Hardcore. Shot porn with paid models and went to jail and the govt. took his stuff. Best just to not ever get on their radar screen.