Trace.where(:inserted => true).group(:user_id).order("sum_size DESC").limit(50).sum(:size).each do |user, count|
display_name = User.find(user).display_name.gsub("@", " at ").gsub(".", " dot ")
Trace.where(:inserted => true).group(:user_id).order("sum_size DESC").limit(50).sum(:size).each do |user, count|
display_name = User.find(user).display_name.gsub("@", " at ").gsub(".", " dot ")