We don't have a "No House Rules" house rule. And, our merry band has pretty much distilled down to folks who are pretty much like-minded. Yes, we have lost a few good men along the way. A significant issue that is internally restrictive is the veritable plethora of rulebooks (and I AIN'T complaining, I'm a survivor of the 17-year drought of official support). But, we got me, who buys everything. We got some who buy nothing (and a subset of them who don't use online books, either; primate book-borrowers). And, we got them that are selective hunters and gatherers. So, some HR's are deemed necessary to level the playing field. Like letting those using the older gang rules use the new House of "X" gang construction rules. But, when not everyone is on the same page (or, even owns the same page), an arms race just wont work for us.