I washed mine this weekend but see no wear of any kind. But this is a Texas truck. Could there be issues with salt in the winter working its way under the moulding and doing damage from the inside?
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car