For one, the general radio silence around ethical issues from the same folks who jump in with gusto on technical issues is both the most fascinating and the most creepy thing I have seen recently, and I am guessing the signal (people debating ethics) over noise (people debating technicals) ratio is low when you consider the implications of people taking these things for granted.
I guess someone will be asking if the signal and noise should be the other way around, given that HN is mainly for discussing technical issues. Maybe, but it emboldens the general attitude from these folks, which I will sum up thus:
"We have more insight into this issue than you because we are on the inside. We are probably smart enough to know what we are doing because we are working at these companies in the first place. And no one really knows the answer to these questions anyway, so what is the use discussing them endlessly?"
Another way to rephrase the above is: "We know what is best for you, and if you are questioning this assumption, you are just hating".
This reminds me of Eric Schmidt's comment on privacy: