Moderating does take way too much time. I'm a moderator on another site, and once there is one, the job can snowball in a hurry. There's a certain percentage of adults that just can't bear not to act like spoiled children.
Neither having moderation, nor ignoring trolls, is an easy solution. For Ginger's purposes, ignoring trolls is probably the better choice.
If she moderated anything, even just the obvious trolls, she'd be accused by both sides of surreptitiously censoring what she didn't want people to hear.
Trolls are a pain in the ass. So is moderation. You pays your money and you takes your choice.
Timoclea