"We see voices being silenced on Twitter every day".
Many vocal supporters of the #WomenBoycottTwitter movement met Dorsey's announcement with positivity, but others were also quick to point out how much time it took for these changes to be rolled out-and whether they will lead to meaningful change at Twitter. He went on to detail a number of new guidelines he and his team are working to put in place over the next few weeks to curb the spread of "hate symbols", "violent groups", and "unwanted sexual advances".
Thoughts about Twitter's abuse and harassment problem?
"We chose to take a more aggressive stance in our rules and how we enforce them", he wrote.
Celebrities including Alyssa Milano, Chrissy Teigen, Anna Paquin, Mark Ruffalo, Terry Crews, Joss Whedon and Michael Ian Black were among some of the high-profile Twitter users who joined the pledge on Friday.
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It was Arsenal who nearly scored straight away however, with Ozil setting up Iwobi, who was denied by the fingertips of Gomes. Tom Cleverley hit a last-gasp victor as Watford came from behind to beat Arsenal and check the Gunners' recent run of form.
McGowan, a vocal online presence in the wake of the revelations of sexual harassment allegations against Harvey Weinstein, subsequently wrote on Instagram that her Twitter handle had been "suspended".
Twitter has rules against abusive speech and threats of violence. Facebook Inc, on the other hand, has 2 billion users.
But both Twitter and Reddit, which has also recently tightened its rules, have always been accused of being too freewheeling and not effective at squelching abuse and harassment.
'Today we saw voices silencing themselves and voices speaking out because we're still not doing enough, ' the tweet stated.
"We've been working intensely over the past few months and focused today on making some critical decisions", he tweeted.
In 2017, he declared - without specifics - that "we made it our top priority and made a lot of progress".