McMansions are often critiqued for their big features but their style may also trickle down to smaller features like wood moldings:

THE UNSUNG HEROES of traditional home interiors, wood moldings are key pieces in the jigsaw puzzle that is a complex room. Originally made from marble or plaster, they’ve been part of the classical-decorating toolbox since ancient times. But although everyone from the Germans to the Greeks had the know-how to wield the crowns and ogees of their day, it took the much-copied French to elevate the light-and-shadow effects of moldings to new and singular heights.

According to Michael Simon, a New York-based interior designer and expert in French architecture and decorative arts, ever since the first appearance of boiserie (or carved wood paneling) in 14th-century French churches, “the country’s carved moldings achieved subtleties and nuances unseen in neighboring countries.” This mastery continued through the 17th century, by which point the craft had “trickled down to the nobles and the bourgeoisie.” France’s gift for molding is still admired today…

4. Consider going vintage: To avoid the McMansion effect that can result from using stock, injection or plastic molding, comb estate sales and shops that specialize in antique variations. Note, however, that most reclaimed moldings were bespoke-crafted for a specific home. You’ll likely need to recruit a millworking shop to make them fit your interiors’ needs.

So a good home requires antique wood molding? How many people today really have that?

The key here seems to be that McMansions on the whole are viewed as fake. The styles and designs they try to imitate simply can’t work because these styles can’t be purchased from Home Depot. To be authentic, the home owner needs to have a proper sense of style as well as the acumen and money to find the correct pieces of wood molding. Sure, it probably is a lot more work (or at least money) but it helps lead to a more “real” home set apart from mass produced tract homes.