Firstly I think you'll find you were referring to Nap rather than Nat.
The reason that he was considering locking the thread was not an immediate reaction to and supporting Gary's post, but occurred further down the thread and appeared to be in response to the rather extreme reaction from the producer who took offence at posts suggesting that the subject was inappropriate and 'titillating' (Pun intended)
Nap's vast experience of the way similar threads degenerate into mud slinging and name calling meant that, as Moderator, it is his role to support the Forum and it's rules: Perhaps reading them might be 'helpful' to both newcomers and producers
For what it's worth I agree that the subject, whilst well sculpted, is in poor taste and whilst it may sell in enough numbers to justify producing it the producers complete outrage when he is offering it up for opinion on a public forum is rather disappointing and instructive. It was being shown on a public forum to advertise and encourage sales. Not everyone agrees that such subjects are appropriate or welcome; this does not mean they are 'narrow minded fanatics' merely that they have a different point of view.
Banjer said it best - Buy and paint what you like, but don't come on here and tell people that they are not allowed to have an opinion. Those that don't like a piece have as much right to say what they want as those that do.