I disagree. A lot of what people would "hide" are in fact equivalent to "clothes" worn because of social norms or taboos.
A comment I make to a friend sitting next to me would be inappropriate to make to the policeman in the corner, or to my boss. Inappropriate to the point of there being consequences.
100%. I have group chats with friends where we express views that would be viewed askance, to put it lightly, by those that don't share the same opinions. Something to hide? Not particularly, but its private discussion so fuck off thank you kindly.
> but for the negative social consequences of the alternative
You mean like hiding your bank balance because the social consequences of people seeing it? Or hiding your medical records because of the social consequences of people seeing it?
Social taboo is a reason we hide things. We know there are social taboos against many things that are harmless, like nudity, so we conceal them. I feel it's a pretty good analogy.
Ignoring the role social taboo plays in that interaction isn’t intellectually honest.