If you don't frequently plug things into your mainboard, does it even matter?

> but i doubt you will get more cycles out of C in real life

You're free to doubt the designers of the USB specification and/or the manufacturer's compliance with the specification, but just logically, the part about having the springs in the plug, not the port, makes sense to me.

I've seen many broken USB-A ports in airplanes and other public charging ports with the spring connectors bent beyond recognition.