Glad you asked. TechCrunch notes that the quality filter, currently being rolled out to verified iOS Twitter users, “is basically an extension of another feature for verified users called tailored filtering, which let them select an edited version of their notifications timeline based on factors like which other users they had the most interactions with.”

Twitter chief executive Dick Costolo wrote in a leaked memo to staff that “We suck at dealing with abuse and trolls on the platform and we’ve sucked at it for years,” noting with concern a number of celebrities who’ve threatened to leave the service.

User @GOPMommy, for instance, found her tweet to Planned Parenthood president Cecile Richards blocked, with the message, “This request looks like it might be automated. To protect our users from spam and other malicious activity, we can’t complete this action right now. Please try again later.”

Whatever the reason, we’re not at all happy to see the return of “emergency” backup accounts, such as @JoshSmithInJail.

TechCrunch reports that the “feature” was discovered by tech blogger Anil Dash.

So, is there any chance of Twitter specifically defining terms like “quality,” “malicious,” and “offensive”?

Editor’s note: This post has been updated with additional tweets.