> Why not use the same (weak) moderation mechanisms everyone else has? Not like you can avoid politics on your regular feed.

Because people don't typically use Facebook at work? It's a recreational tool. The issue is that for Facebook employees, they are working on building that recreational tool, and that hampers productivity and professionalism.

> I guess he realizes they don't work.

Or he realizes that they work for a service that's typically consumed during one's free time, and not as a direct component of one's employment.