This is why you only post as a pseudonym.

I have work accounts with my real name and picture, and I have non-work accounts that are actually how I use these things. The work accounts just post work-related things that work contacts might be interested in.

No one from your work life wants to know what you think about anything other than what you do for a living. It's a distraction.

If I were forced to de-anonymize online, I'd just stop using it. There's supposed to be a line between public and private, work and personal.