I've seen enough damage customer done to their carbon bikes due to overtightening the stem/seat clamp.
It's not just over-torquing, some people get scared and under-torque, then stuff works loose at the most inconvenient moment, i.e. when you're at maximal distance from home on the one day you haven't brought your Allen keys.
It's not just over-torquing, some people get scared and under-torque, then stuff works loose at the most inconvenient moment, i.e. when you're at maximal distance from home on the one day you haven't brought your Allen keys.