This is not a good way to connect your iPhone charger
This is so wrong, I doubt if it did any damage to iPhone but people come on!!! Can you be so drunk not to be able to get it the right way round? Yeah I guess.
There have been occasions where I have had to repair MacBooks with DC-IN board blow out issues, but I’m sure that this is not the way it’s happened.
Just be sure your plug in your devices the right way and check for dust within the DC-IN connector now and again.