A newly updated 'Rock paper scissors' game using socket.io – request feedback

The game: http://coolfriends.me

This is a follow up post from https://news.ycombinator.com/item?id=7101615

I made some additions to the game like: chat functionality, time limit of 5 sec for the games, see who played what after the game, rankings of the current players and matches history.

What do you think I should do next?