Board Thread:Roblox help and discussion/@comment-26564053-20180715115914/@comment-27177606-20180715121600

They only did it because of a recent story about a girl whose avatar had inappropriate things done to it by exploiters in a game that didn’t have FilteringEnabled (i.e. Experimental Mode). Besides, they have said that they intend to let all users play them in the future after they add some safety checks.

On an unrelated note, Wikia ToS states that you have to be at least 13 (or 16 if living inside the EEA) to use an account. Not really the best idea to imply you’re under the specific age, especially considering they actually enforce that policy as a result of COPPA.