It's a mixed bag. Everything you do IRL gets photographed and uploaded by your friends without your consent for future potential employers to scour through, Twitter becoming the whole world's HR department, your name, address and employer readily available with a Google search, etc.

I basically don't post too many opinions unless I'm on an alt account, and I'm considering tor for that going forward.

There's a give and take here. As more people are bold about how they express themselves, companies inevitably become more accepting of different types of expression. I've seen a massive shift from the 80's to today in what's acceptable for different types of jobs. There is always some risk for being on the edge of that trend, and we should be grateful to those who take those risks for making it easier for the rest of us.

A mixed bag? Is there anywhere in the history of humanity with more extreme and unaccountable behavior than the Internet?

It's about equally extreme in the level of accountability as well (for better or worse).

People do horrible things on the Internet without accountability all the time.