If anyone works in a state/fed job it's not that hard to find their salaries listed publicly. That includes public universities. What these asshats don't know is that more often than not, it's just that person's base salary. My sister's salary is also publicly available and the public database doesn't show either or our actual salaries.
That said, I've been an open book here and it's not that hard to figure out who I am in real life. I'm actually friends on social media with more than a handful of people I've met here and have had several sidebar text conversations with people over the years. Over the last few years I've shared information and articles about the ALS organization I started with my brother and my real name and photo have been all over that stuff.
Again, I'm not sure they're talking about me, but given all I shared below and in this post, I'm relatively certain they are.