Which means that the general populace, as users of these apps, must learn and remember to adjust such settings, if they are important to us.
Although it is not stated explicitly, there is a sense that this article is trying to blame the technology for some change in social interaction (which the author thinks is bad).
Yes, there has been a change in the way we do things. But I don’t think it has changed all that much compared to before we had such apps. There has always been a chance of being caught out in your lies; you always had to put some effort into the cover up, and the consequences of being caught have always been the same.
You can switch “Snap Map” in this article with any other advance in communication, all the way back to the post office, and it will still be true on some level.
In my opinion, this article is unnecessarily alarmist and sensationalist.