Oh, not much, just...
Overloading, dumbed down water temperatures, non-tempered cold water temps below 85F, cycling of hot and cold water as a (shitty) way of tempering water temps, chlorine bleach, no full control of timer/water temps/water levels, crappy modern control boards and touch screens, non porcelain coated tops for top loaders, neutral drains, lack of a well designed lint/hair filter, no spin spray rinses, short spin spray rinses, no warm spin spray rinses, no warm deep rinses, spin spray rinses on the final spin, solid non perforated tubs, plastic tubs, thin gauge sheet metal cabinets, anything too aggressive that destroys my clothes.
Dryer: Non-electronic control moisture sensoring, rear to rear airflow, non coated porcelain tops, thin gauge sheet metal cabinets, cheaply painted interior drums, no interior light, no mechanical bell chime.
I'll probably think of more...