I agree that this is a danger, and that it's something we should be wary of, in both ourselves and others.

But I'm not sure we should require people to spell things out in excruciating detail every time they think someone else has committed an error. It's probably a good mental discipline to go through this process in your own head, to check that you're not firing off an unwarranted accusation, but sometimes it really is pretty obvious that a particular error has been committed, and in such cases the shorthand seems both useful and justified. If it's still unclear to others, I'm fairly sure someone will come forward and say so (and they should be encouraged to do so).

Maybe I'm wrong about this. I'd be interested in others' opinions.