Visualization tip - if you want to focus on sentiment, encode the sentiment as the size of the bars (or x/y-position of lines/points). What you've done is assig

Visualization tip - if you want to focus on sentiment, encode the sentiment as the size of the bars (or x/y-position of lines/points). What you've done is assign number of posts to the bars and encode sentiment as color which makes it more difficult to read. (I would also pick a line over bars for this but that's a minor point.)