Encountering an irritating number of devices that are charged/powered via a USB-C port but that don’t work with a USB-C pd charger (only with a USB-C to USB-A cable).
Bonus irritation: a device with a USB-C port that works with a PD charger only if the cable is plugged in one orientation, but will work in either orientation if connected to a USB-A charger. (A Phillips rechargeable pocket work light).
I’m hard pressed to think of another “standard” that has as many incomprehensible and unpredictable ways things can be incompatible as USB-C.

@mattblaze

"Standard" bicycle parts? Maybe

@howtophil
I don't think there was ever a worldwide bicycle parts standard. Threading could be different depending on the country of origin. That said, any standardization has practically disappeared with so many proprietary systems per manufacturer.
@mattblaze

@seismo @mattblaze

The only standard thing in bikes is the bike-shop "joke" that there is no standard anything. Bike companies like to claim they use "standard part X" though