This article over at Terra Nova struck a chord with me. As a former GM of a family friendly guild, I can understand the problems that Liz describes in her post, that being that not everyone seems to be on the same page at the same time. Liz's issues of racy guild chat, inappropriate 13 year old behavior (which she correctly points out might not be entirely inappropriate for a 13 year old) and the conflicts between the parents of kids in the guild and those members without children playing the game really brought back memories.
Dealing with those issues was without a doubt the most annoying aspect of being GM at that time. We had several sets of parents in the guild, and they all had a kid playing. Most of the kids were between 14-17, and most of the time they were great, helpful players. But then sometimes I'd be in STV and see one of them flaming someone with extremely colorful language in general chat over some perceived slight. And then 2 days later I'd get a /tell from one of the parents of that very kid complaining that someone was swearing in guild chat and their kid can't be exposed to that kind of thing. I'd usually just have a laugh to myself, make a clever comment in officer chat and then assure the parent that I would work on stopping the adult language.