Are you using Apple, or major-vendor cables? Im curious because delamination of a pin on 2 separate ports implies something catching/dragging on it, maybe there is something either poorly designed, or simply mangled in the end of one of your cables.
Major vendor cables, and the delamination was one connector's "finger" so not really cable-specific. The second connector looked fine at casual glance but there was something wrong with it as it wouldn't even hold connection with a USB2 device - too much slack.
I don't recall having this issue with any of the connectors it replaced. I have devices that are close to a decade old and all their USB/Ethernet/HDMI ports are still working just fine.
It's a terrible design that prioritizes form over function/reliability.
