HN top colors

HN user profiles have a setting called "topcolor" which allows you to change the color of the orange (by default) bar at the top of the page to any color you like. If I remember correctly, the feature is enabled if you have some number of karma points.

I find the feature useful to visually differentiate a logged-in HN session (my color) vs. a logged-out HN session (orange).

Apparently, this is a list of all the colors that HN users have set their 'topcolors' to. (I set mine to '66dd66', which indeed shows up on the list.) Why someone found it useful to keep track of this list of colors is anyone's guess.

It looks like HN is a very diverse community, at least in terms of their favorite colors.