Sure take it seriously, but don't trivialize the issue with alarmism. A few decades ago more information (Full name, phone number and home address) was available in phone directories. These were commonly distributed to every home with phone service.
Today we have security-expert-journalists calling the equivalent of a phone book a "verified threat incident".
I'd wager that gmail data is already available to the intelligence services of the five-eyes countries.
What does taking it seriously mean in this case? Not using Facebook? Acknowledging that data posted publicly is, wait for it... public?
To top it off the bread and butter of this blog is affiliate links to VPN providers. Another centralization of data for those seeking privacy. Not only is this contradictory, but it preys on the ignorance of the audience.
When companies sell this same data to employers it is called OSINT. When someone finds this data through Shodan and it is hosted in Vietnam they call it cyber-crime. Many times the OSINT groups are the same ones making the accusations.