My my, this Paul chaps a one isn't he
I take it he is a representative of the Salisbury Flock
Which of course would explain his opinions, after all, to be fair to Naim, they do design in things like regulated power supplies, damping and isolation and RF shielding as standard.
For me it's a shame they apply this thinking to what must be a pretty crap base product, as the result of all this standardised tweakery is to make a naff product into something half decent. At a stupid cost mind
Now we on the other hand are able to select tweakery from any source and can take advantage of a greater pool of knowledge. Plus we are starting from a base line of very decent hifi in the first place. The result is product which improves considerably on Salisbury's finest to most ears.
Still, mains cables, Powerblocks etc will not offer much to the Naim user in terms of improvement. Large scale component upgrades are required for that