The most vanilla, non-controversial, fact, like that your favourite colour is blue, is no business of those you don't choose.
Privacy should be the default expectation, not something granted to you as a reward for convincing emotional pleading.
But if everyone's secrets are unveiled, everyone benefit's. (e.g. you might learn that your wife hates you too, and that everyone likes to pick a nose:)
The problem isn't that people loose their privacy, the problem is that government get's to keep it's privacy, and government shouldn't have any privacy in the first place!
I may be misinterpreting you, but I don't believe this is true. It only works if you find out other's have a similar or compatible secret.
If everyone found out you pick your nose and eat it, but no one else does it, how does that benefit the nose picker?
If bob finds out his boss hates him, and his boss finds out that he has racist tendencies, how does that benefit bob?
In the second case openness might be the first step to a better relationship between both.
Hemorrhoids Herpes Depression I like to pick my nose I have a sort bit on my cock I don't wash much I hate pensioners/seniors I hate work I like Justin Beiber I hate my boss I hate my wife I hate my kids I think all policemen have issues I don't like how Jews mix race, religion, and politics I'm irrationally scared of black people
Enough?
Now, if all or some of that were true, none of it is illegal, I would keep quite and always act appropriately despite my possible opinions, but like hell would I want people close to me or people I work with knowing any of that, let alone the government.
I have plenty to hide, maybe the above, maybe not. So, yeah, I have plenty to worry about.
Any one else?