Some interactive experiences will also be banned for Roblox's youngest users ... that it's testing an age-verification ...

Roblox has announced it will block under-13s ... must verify their identity and age with a form of government-issued ID or a credit card in order to access parental permissions for their child ...

Additionally, users who are younger than 13 are banned ... Roblox is also currently testing an age-verification feature that verifies users over the age of 13 with a government-issued photo ID.

Other users then reported that they had received bans or warnings simply for mentioning the YouTuber's name. PewDiePie's account was eventually reinstated, with Roblox calling the ban "incorrect".