Possibly. Most guitar/bass players I know have used it at some point, but that is just people I know.
There you go.
...You are missing the point here. How would it be obvious it is off if they aren't looking at it? For them to judge it, they must have seen/attempted to use it.
You'll just have to take my word that those websites are chock full of chords/tab that are simplified, inaccurate, or just plain wrong.
...I guess this is what is happening, or maybe not helping at all.
I guess so.