# Most helpful Sandbox commenter The [Sandbox](/q/2140/66833) is a very useful tool to help improve people's challenges, and functions best when users provide helpful advice and feedback on the drafts. This category should reward the users who helped the most in the Sandbox during 2021 ### [Razetime](https://codegolf.stackexchange.com/users/80214/razetime) **Nominated by Redwolf Programs** Using my offline copy of TNB's transcript, I compiled a table, showing the number of times every user replied to a message in TNB asking for feedback on a sandboxed challenge in 2021. Razetime had a large number of responses with consistently useful feedback, and more of them than any other user. ### [Bubbler](https://codegolf.stackexchange.com/users/78410/bubbler) **Nominated by Redwolf Programs** As with Razetime, Bubbler has consistently replied to requests for feedback in chat with useful suggestions. Many times Bubbler's replies make note of missing or incorrect test cases, which is important and something that's often skipped over.