How to join a challenge or group without others knowing?

[bob_]

How can I join a challenge like a daily showdown or weekend warrior or the Yosemite falls step challenge privately where no one can see that I joined? Or also like join a community thing like the snacking healthier community, how do I join that without anyone knowing? 

Moderator Edit: Clarified Subject.

[MarcoGFitbit]

Hello @bob_ I hope you're doing well, it's nice to see you around the Fitbit Community. 

I appreciate your participation in the Forums and for sharing your question with us. At this moment, it's not possible to privately join a group or a challenge. When you join to a group or a challenge, the creator of said group or challenge will know you joined. 

I know this is very important to you, which is why I would like to encourage you to submit your insight as a suggested idea, where members of the Community can comment and vote for it so it can be implemented in the future.

Feel free to share your suggestion with your friends and family to add more votes and comments, this is the best way to make your voice heard and get the attention from our development team.

I hope this can be helpful, if there's anything else I can do for you, please feel free to reply.