If I may play devil's advocate...
It's a paycheck. She wants to be a tabloid editor, which means she's not in the business of informing. She's in the only growth industry an English major can look forward to. If one's choices are "forever work for free at the Huffington Post" or "make six figures shilling as a Fox News 'Expert,'" you can't be surprised when people flock to the dark side. This is just a symptom of a brain drain that's occurring because of the lack of money in the newspaper industry, and all it takes is the fortitude to leave one's soul at the door.
TLDR: There's money in union-bashing. Who knew, right?
As for the connections to it and trolling, trolls and shills are two separate things. Shills do it for a paycheck. Trolls do it for the lulz. A troll just wants to sideline the discussion until everybody talks about the troll. The shill wants the opposing view to get drowned out in the manufactured "controversy."