Fritzing diagrams have been used in a few questions.
I must admit, they look nice, and will certainly be helpful when you're wiring up your solderless breadboard. But you hardly can read resistor values, and even with the label "BS170" you don't know which pin is which without looking at the datasheet. This doesn't have the value of a schematic, where a trained engineer can read the circuit's function. In that sense I'm against Fritzing, and would much more love to see a schematic.
Here's another one I found on the 'Net:
To be clear, this wasn't posted here on SE. But one day it will. This is absolutely useless if the ICs aren't labeled.
How do we look at Fritzing? Is it OK, or can we ask from posters to show a real schematic? My answers: Without a schematic not OK, and yes, we want a real schematic.