https://www.theverge.com/2018/7/27/17620440/twitter-q2-2018-earnings-1-million-mau-fall-in-spam-crackdown

Twitter’s monthly user count dropped by 1 million over the past few months and could drop by millions more as the company cracks down on bots and spam. Its monthly user count — a metric often used to discuss the company’s growth and success — fell from 336 million last quarter to 335 million this quarter. And Twitter says it could lose “mid-single-digit millions” more over the next few months.

The numbers were reported this morning in Twitter’s second quarter earnings for 2018. Though Twitter didn’t necessarily lose many “real” users in its account purge, the company hurts its outlook among investors because, in past quarters, it had counted those fake accounts as real, inflating the size of its apparent business.