The microblogging service has shut off access to more than 30 accounts that chronicled and archived the deleted tweets of politicians, diplomats and embassies all over the globe. Before, Twitter blocked the political transparency organization Politwoops US, which archived deleted tweets by US lawmakers.

Twitter announced the impending ban a few days ago, saying that its decision was made after a thoughtful internal deliberation and close consideration of some factors. Twitter explained that deleting a tweet is an expression of the user’s voice, but the Open State Foundation argues that what elected politicians publicly say is a matter of public record – so, even if tweets are deleted, they remain part of parliamentary history.

The UK version of Politwoops was affected by Twitter’s move, and as a result, its Twitter account has not posted since Friday evening. However, Politwoops website continues to archive deleted tweets.

The person behind the blocked UK Twitter account says that it’s a shame that the company has made this decision, because Politwoops is considered an important new tool in political accountability both in the United Kingdom and overseas. Politwoops explains that social media is playing an increasing role in UK politics and Twitter’s move denies it an opportunity to extend proper accountability to social platforms.

A few weeks ago, Twitter also blocked the American version of the political transparency organization, claiming that honoring the expectation of user privacy for all accounts is a priority for the service, whether the Twitter user is anonymous or a member of Congress.