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...also, something that's six years old, but still makes a good point that I intend to make use of in my blog:
https://www.chrisstucchio.com/blog/2014/why_xkcd_style_graphs_are_important.html
xkcd-style sketchy rendering of computer-generated graphs is an important visual cue to drive home to humans (who "don't read") not to assume too much precision or accuracy out of a graph intended more to visualize patterns.
...and another important blog from 2006 that I somehow missed the link to the first time I read "Why xkcd-style graphs are important":
https://headrush.typepad.com/creating_passionate_users/2006/12/dont_make_the_d.html
(If for no other reason, so it'll be here if I forget what I bookmarked it under.)