The frame itself has never been in an accident or tipped over; any signs of wear on the components come from falls or their use on other bikes.
There is only a small nick on the top tube from a keychain (see pictures) and the classic chain scratches on the drive-side dropout.

Everything that was screwed into the frame was always greased and tightened with the appropriate torque.

The Enve seatpost has a superficial crack due to an assembly error by the previous owner. I rode it for the aforementioned 3.6k km without any problems, but everyone has to decide for themselves lol