"It's a pity that they don't pay union wages though. I wonder why?"

You should read your own links.

This is a part-time, on call job that's great for actors, students or other politically inspired progressive people needing a flexible schedule.

But then again no one who is smart and not a millionaire is a "conservative." A requirement for your ideology is that you vote against your own economic self interest. That is what makes "progressive" causes so hopeless. They try to persuade when basic math and reading education is what is required.