Effective today, May 16, 2015 5:05 PM EDT, names that belong to famous/infamous users on ROBLOX will be prohibited without proof.

Older accounts will not be affected if you're not implying to be that person.

The reason is that RBLXDev is geared towards the (more) mature audience. Impersonation is pretty immature to me and the entire RBLXDev team.