Twitter has just announced that the number of accounts a user can follow in a single day has been reduced from 1,000 a day to 400 a day. The reason for this change is to target spammers who usually follow large numbers of accounts, following and unfollowing users while avoiding being spotted. Twitter did not explain why the amount 400 was chosen.

Although users can report spammers, it is not easy to stop them from creating, following and unfollowing on Twitter.

“As a part of our commitment to building a healthy service, we remain focused on stopping spam and abuse on Twitter,” a spokesperson for Twitter was quoted. “We found that having a high daily follow rate contributed to follower churn, and as a result, we are reducing the daily follow rate limit from 1,000 to 400.”