Better Late Than Never
And now they are planning to implement some new functions intended to curb cyberbullying.
Twitter is adding a “mute” function, which will enable people to block accounts they don’t want to see tweets from as well as keywords, phrases and conversations they don’t want to get notifications about.
Said Del Harvey, Twitter’s vice president of trust and safety.“We don’t expect these announcements to suddenly remove abusive conduct from Twitter. No single action by us would do that. Instead, we commit to rapidly improving Twitter based on everything we observe and learn.”
Basically it's the same function as Facebook's function which allows you to block someone's content without officially unfollowing him or her.
See more about Twitter's mute function here.