I'm sorry (or not ...), but I really don't think that the developers and/or designers for any GLO's website really had this kind of research in mind, or are particularly concerned about it. That's just not the purpose of the sites, and the usability of a website for obsessive-compulsive GLO-comparison research isn't one of the criteria that any normal person browsing cares at all about.
Furthermore, for the record, Delta has over 900 chapters, many more than Kappa Sigma (234 according to their national website) or TKE (approximately 300 according to their national website). They are both wonderful organizations, but they have different considerations about how they organize their websites and chapter information. (And honestly, I doubt that obsessive-compulsive GLO-comparison research is one of their considerations either ... even if their way DOES happen to make it easier. It's a coincidence, imagine that!)
