How can I see the name of the participants on every message?
You can know the identity of every participant posting a message on your Wiz.
To do so :
1 - Go to Configure your wiz > Settings > Participation mode
2 - Select Identified only
3 - Don't forget to Save
Once activated, your participants will have to be connected with a Wisembly account to be able to interact on your Wiz, and all contributions will be signed.
Note : the anonymity of your participants usually is one of the main reasons people say whatever they think without restraining themselves.