How about "more alarming to the lawmakers?"
Someone could show that movement info, for example, is available for sale on a legislator. Or a legislator's spouse or child.
Now do you see the problem, oh you who write the laws?
Surely someone is already doing this? It wouldn't be especially expensive, but even if it were we could probably crowdfund it easily enough.
I guess what I'm saying is, your suggestion would be a good idea, but the security apparatus figured it out before you did a long time ago. See ABSCAM for instance.
The entity that orchestrated that outing, with the accompanying simple purchase of location data, etc. was a Roman Catholic newspaper known for high-quality investigative pieces. https://www.pillarcatholic.com/p/pillar-investigates-usccb-g...
If such incriminating data is so easily procured against just one guy using a gay hookup app, imagine the treasure troves of data that could be wielded against Members of Congress and other people in power. Even in the absence of wrongdoing, I still don't think that public figures would enjoy having the public know their every move, every minute of every day, but the reality is that all the apps they run are phoning home and uploading that data constantly, unceasingly, and it's all for sale.
If you have the wherewithal to protect yourself from the unsavory underworld types who will inevitably come after you for revealing things they'd just as soon keep secret.
There's a reason you only see the government doing this kind of thing.
I figure either he was shown some very strong and classified evidence that the data the NSA had been collecting was critical to protecting the people even while it violated their constitutional rights and freedoms or else he was shown how much dirt they have on him and his family and he was blackmailed into publicly declaring his love for NSA spying and handing them more tools to collect data while making only a few token changes.
https://en.wikipedia.org/wiki/Bellingcat
https://www.goodreads.com/book/show/54680228-we-are-bellingc...
Just, Devil's Advocate, but, yeah, why can't it be both?