Show Your Work

When showing your work, how do you bridge the gap between something being used for and something being span? Ah k to has a chapter on that. So me posting a picture of my late is probably not going to be useful to one other person in the world. But me posting literally anything else about the stuff that i'm learning will probably be useful to at least one other people in the world,. That is my barrfer. Shall i post this verse, should i not? Maybe you have a recent example whereit was maybe on the cuss to you, as far as you know, is this useful to some one or not? And you decided it was there a c so i was