This sub is overloaded with bad data viz and there are many other problems that aren’t as obvious as these are.. it’s really easy for untrained people to make bad graphs that look good.

The other big issue is a lack of data skepticism.. even if you know best practices, if you use bad data it’s still a bad data viz.

Unsurprisingly the posters always get pissed when you explain where they are making their mistakes.. more interested in getting an upvoted than learning the art.