大量にフォロバしてしまったアラブ人をブロックしてブロック解除する。 ref: http://qiita.com/naniwaKun/items/5c2582f32c7116ae89c9

block.rb

require "twitter"
require 'json'

USERNAME = "********"

client = Twitter::REST::Client.new do |config|
  config.consumer_key        = "********"
  config.consumer_secret     = "********"
  config.access_token        = "********"
  config.access_token_secret = "********"
end

follower_ids = client.follower_ids(USERNAME).to_a
begin
  followers = follower_ids.each_slice(100).to_a.inject ([]) do |users, ids|
    users.concat(client.users(ids))
  end
  followers.each_with_index{ |user|
 profile = user.name + user.description
        regex = /[\p{Han}\p{Hiragana}\p{Katakana}，．、。ー・]+/
japanese_arr = profile.scan(regex)
if (japanese_arr.empty?)
                client.block(user.screen_name)
        end
}
rescue Twitter::Error::TooManyRequests => error
  sleep error.rate_limit.reset_in
  retry
end

unblock.rb

require "twitter"
require 'json'

USERNAME = "********"

client = Twitter::REST::Client.new do |config|
  config.consumer_key        = "********"
  config.consumer_secret     = "********"
  config.access_token        = "********"
  config.access_token_secret = "********"
end

blocked_ids = client.blocked_ids(USERNAME).to_a
begin
  blocked_list = blocked_ids.each_slice(100).to_a.inject ([]) do |users, ids|
    users.concat(client.users(ids))
  end
  blocked_list.each_with_index{ |user|
 profile = user.name + user.description
        regex = /[\p{Han}\p{Hiragana}\p{Katakana}，．、。ー・]+/
japanese_arr = profile.scan(regex)
if (japanese_arr.empty?)
                client.unblock(user.screen_name)
        end
}
rescue Twitter::Error::TooManyRequests => error
  sleep error.rate_limit.reset_in
  retry
end