I mean sure there's that, and then there's colleagues you have to ask for context every single time. A previous coworker I had would frequently start talking to you about some bug he's trying to fix without first telling what bug he's even on about.

I feel like the curse of knowledge mostly applies when experts talk to non-experts. Not including trivially required context when talking to co-experts seems like something else to me.

Well this explains why 70million voted for the other guy!