I can't really comment on "Pledged" because I haven't read it yet, but I think Greeks everywhere would likely criticize any work written about GLOs. I'm in the middle of writing a story where the main character is going through Alumnae Initiation. The fictitious GLO that she's a PNAM in holds teas and bake sales as a part of their philanthropy events (well, that's what I've written so far, anyway
) But what will GDIs think? Will they see these teas and bake sales as "snobby" and "elitist"? Of course, this is going to be a work of fiction, so it's a whole different cateogry than Ms. Robbins' book.
ETA: The story doesn't JUST focus on GLOs...it's just another one of those 20-something "chicklit" stories, I guess....