We work hard to limit spam on our service, and prohibit the creation of accounts through unauthorized or automated means. We encourage people to report such accounts through the report links we provide in our apps and on our site. We process these reports through our operations team, and this information helps inform our site integrity systems. These technical systems also flag and block potential fake accounts based on anomalous site activity. Additionally, we employ robust systems to address accounts compromised through malware and phishing, which helps keep the number of fake accounts low.