Twitter

Twitter is "not satisfied" with its user growth, co-founder Jack Dorsey, who replaced Dick Costolo as CEO earlier this month, said Tuesday after the earnings report. But that's unlikely to change any time soon.

Twitter doesn't expect to see "sustained, meaningful growth" of its number of users until it reaches the mass market, said Chief Financial Officer Anthony Noto. This, he said, will take considerable time.

In private meetings on Capitol Hill, industry officials have told lawmakers and congressional staff that they already ban grisly content like beheadings and alert law enforcement if they suspect someone might get hurt, as soon as they are aware of a threat.