The company had also made changes to Tweetdeck and its API last month in a bid to " limit the ability of users to perform coordinated actions across multiple accounts". Those accounts were known for mass-retweeting or for copying and stealing tweets from other users.
As it customary, Twitter is not willing to comment on individual cases, but it is thought that the company was unhappy with repeated violations of its policies against spam. Suspended accounts reportedly include @Dory, @teenagernotes, @SoDamnTrue, @reiatabie, @GirlPosts, @commonwhitegiri, @memeprovide, @finah, and @holyfag.
Many of these accounts were hugely popular, with hundreds of thousands or even millions of followers. They gather in private Tweetdeck groups to plot out their plans to manufacture virality. To be clear: Twitter prohibits any attempt to use automation for the purposes of posting or disseminating spam, and such behavior may result in enforcement action.
This is seemingly no longer appropriate, account to Twitter's terms of service. Which exposed almost 700,000 people to propaganda in January over the course of the 2016 US Presidential Election.
Twitter's CEO Jack Dorsey recently admitted the site has serious problems with "abuse, harassment, troll armies, manipulation through bots and human coordination, misinformation campaigns, and increasingly divisive echo chambers", and asked for help assessing the "health" of the platform. Twitter's struggle to clean up its platform is highly appreciated. The twitter's policy claims that it will suspend the accounts indulged in spamming, mass retweeting, and forced virality would be suspended permanently, and however, there is no information as of now whether Twitter will suspend the account permanently or not.
It's not certain if the suspensions are permanent.