Hiding in Plain Sight
https://blog.talosintelligence.com/2019/04/hiding-in-plain-sight.html
I'm totally amazed at what goes on on these so called social networks. I have thought them suspect from day one and haven't signed up to a single social networking site.
You're a member of the Evangelists' Corner Café so you at least subscribe to one of these social networks.
Definitely not in the same league as these rogues. The other slightly different aspect, you can't just join
Not any more. There was a time when posting enough nonsense earned you that right.

We also need to realize that even the most careful person can have their information hacked simply by belonging
to a site or forum at the wrong time. If the site or forum are hacked, many times so is the information of those that belong to that forum.
We've all gone through that.