The British journalist at the centre of Twitter abuse says moves by the company to roll out a "report abuse" button across its platforms is "not progress".
Overnight Twitter responded to online calls for tougher action against Twitter trolls, announcing on its UK website that it will make available a button to flag offensive tweets across its Android and web platforms.
The "report abuse" button is currently only available on the latest iPhone app, appearing as an option on every tweet.
The move comes after British journalist Caroline Criado-Perez faced an onslaught of tweets threatening sexual abuse after she lead a successful campaign to have women displayed on British banknotes last week.
An online campaign in support of Cirado-Perez has so far received more than 66,000 signatures. It calls for changes to Twitter's reporting technology and a 'zero tolerance policy'.
"To the extent that our system is based around the filing of reports with our Trust & Safety team, we strive to make it easier and more practical to file them.
"Three weeks ago, we rolled out the ability to file reports from an individual tweet on our iPhone app and the mobile version of our site, and we plan to bring this functionality to Android and desktop web users."
But Caroline Criado-Perez says the 'report abuse' button is not enough as it simply returns users to an old feedback page that she says takes too long to be effective.
In a tweet to readers, Criado-Perez said:
In an exchange with Twitter's UK General Manager Tony Wang, Caroline Criado-Perez criticised the site's longwinded process for reporting abuse.
Twitter says while manually reviewing every tweet is not possible, its user rules explicitly bar direct threats of violence and those found to breach the rules via a mix of automoted and manual vetting systems may be suspended.
Criado-Perez says she is continuing to work with police to identify those responsible for the abuse.
A 21-year-old man from Manchester was yesterday released on bail after he was arrested on Sunday, accused of sending Criado-Perez rape threats.
Criado-Perez has told police she first received abusive tweets last Wednesday, when the Bank of England announced that author Jane Austen would be the face of the new ten pound banknote.
She said she had received "about 50 abusive tweets an hour for about 12 hours", including threats to rape and kill her.
Many have joined together online in defence of Criado-Perez, including British Labour MP Stella Creasy and former deputy prime minister John Prescott.
Criado-Perez encouraged users to post examples and screengrabs of abusive tweets to the Twitter account @TheWomensRoomUK while conversations online continued under the hashtags #shoutingback #carolinecriadoperez and #reportabusebutton.
WATCH : Twitter launches 'report abuse' button
