Depends on who's asking for the help and who's giving the help, I suppose.
rolf_martin_062 has chimed in on a couple of my EM issues in the past. I've found the schematic snippets he posts, complete with colour-coded notations, really helped me track down issues and expand my EM knowledge. These visuals also help get Rolf's point across, with English not being his first language. Thanks, Rolf!