I go to LinkedIn to find work.
My real name is there. My picture is there. My career history is there.
There are many places on the Internet where I can anonymously post inflammatory opinions without endangering my job, my career, or my reputation in my field.
I kind of feel like that is the situation on for everyone else on LinkedIn too.
So... why do some people post inflammatory opinions about politics and other non-career related subjects on that site?
All risk and for zero gain.