Do you try and save every bad forum you come across, or just do your minimum duty and put up a "stay away" beacon at best?

Nope! But since I'm part of that list, I encourage people to improve it :)

I think there should be a place for LessWrongers interested in parenting to exchange ideas, and it's better if there's only one such place - that mailing lists seems like the obvious focal point, so I'd like to see anybody interested join it, and improve it's quality!