Don't save the user when editing a list in SharePoint

Is it possible t开发者_StackOverflow中文版o make SharePoint not store the user name in the fields Created_at and Modified_by when editing a list. I want to make this completely anonymous.

I don't think you can get away without having the Created or Modified fields. I would suggest using an Event Receiver that changes the values to something safe (perhaps even System Account) on ItemAdded and ItemUpdated.

For more information, see:

• SharePoint/WSS: Modify “created by” field?
• Changing “Created By” in Sharepoint 2007
• SharePoint Documents Library - Change “Document Created By” field

You could consider a SharePoint survey. In surveys can hide user names.