On the dating marriage and sex compatability thing I would say one STRONG reason was the WT made it SEEM like as long as you had JAH in your marraige...excuse me:
Your marriage would be fine no matter what?!?
How many articles did we have where couples were on the verge of divorce but damnit thanks to WT$ study and feild service that shit just made all marital woes disappear SMDH.