A disappointing report card for Twitter late Tuesday (February 12) - from its own boss.
Chief exec Jack Dorsey said he'd give himself a C grade for efforts to stop online abuse.
In a tweeted interview, Dorsey said Twitter and other darlings of Silicon Valley haven't done enough.
In the #KaraJack thread, he tweeted that "changing the experience hasn't been meaningful enough.
And we've put most of the burden on the victims of abuse - that's a huge fail." The platform subject to criticism over fake accounts, fake news, and abusive posts.
Other social network giants face similar charges.
Twitter has been investing heavily to improve what Dorsey calls the "collective health" of the platform.
He said the company is working with government agencies to combat fake news ahead of the next U.S. presidential election The interview with Kara Swisher also touched on his favorite tweeters, - Elon Musk and Alexandria Ocasio-Cortez rating highly - Dorsey said he 'doesn't feel good' about how the platform can be used to incentivize outrage and short term thinking.