This isn’t the first time Valve has taken action against Smurfing in Dota 2. Back in February, the company banned 40,000 Smurf accounts in a single day, employing a bait-and-switch strategy to catch offenders.
In a separate blog post titled “Cheaters will never be welcome in Dota,” Valve explained how it managed to identify and ban a significant number of fake accounts. The developer identified third-party software that provided players with an unfair advantage and took steps to address these issues.