Dive Brief:

• CEO Dick Costolo admits that Twitter "sucks" at dealing with abuse and trolls on the platform. 
• In internal messages, Costolo confesses that Twitter could do more to curb abuse and acknowledges that it's causing core users to leave. 
• Costolo promises in the internal messages to put more resources in place with Twitter partners working to stamp out abuse on the site. 

Dive Insight:

Unsavory user activity is a mountain of a problem to tackle and is a balancing act between offering an enjoyable environment and not silencing free speech. Marketers are likely more aware of the problem than most users, as brands can get the brunt of abuse from trolls—remember that horribly NSFW prank the on US Airways' account?  The site, as underlined by its earnings report, can't afford to lose users— especially core active ones—over any circumstances. For that reason, abuse must be handled effectively or Twitter will not be able to sustain its momentum.