I was looking at LL data on thrilldata, and I noticed that under their main graphs they have a “this day in history” option. When you select it you get a graph with every year’s curve in a different color.
I know their data is limited to mostly just posted wait times, which isn’t useless, but it would be really cool to see that kind of thing made with more accurate user submitted data, especially in this current era of relative unpredictability. Does that exist somewhere here already?