It's very good and useful detail on each coin when those are clicked.. though perhaps some users will miss that detail is avaliable.
I wonder you could also throw the same data into a d3:cluster dendrogram
http://bl.ocks.org/mbostock/4063570 as an alternate way for the user to choose to display this detail.
We have thought about it. And it was something like this at first
warning! may cause brain damage I understand, that mapofcoins is not perfect and as informative as it could be. But we try to do our best. There is a plan to implement filters and search option to help it to become better.
