The people who think this is a good idea don't fully understand the implications. Hell, people get dox'd because they don't understand how the whole system works with publicly available information when they are discussing something they really shouldn't under their real names.
Hell, even without the NSA its pretty easy to imagine a scenario where:
[Person discusses having an affair on Platform X] -> [Some bored IT guy notices, thinks the woman is attractive and has no morals] -> [Uses exchanged information to exploit her for sexual favors because its better than her husband divorcing her and leaving her with nothing]
It doesn't even occur to these people that they are creating weapons that literally could be used to exploit anyone who has a secret they want hidden, domestically. The firewall that exists between "domestic" and "international" that is supposed to prevent this is exactly what these politicians are burning down.
At least, I keep hoping its ignorance.