They don’t use SN so I have to forward them stories.

Here is what he said and asked:

If the comparison is between using public nodes elsewhere and using your own node, it's by definition a better option.

When you're broadcasting to or receiving info from your own node, the assumption from your side remains that the node is untrusted.

I think maybe the discussion you reference above is conflating cold wallet's security model with privacy-enhancing aspects of having one's own node.