If you'd like to post something in a Facebook group without revealing your name, use Facebook's anonymous posting feature. It's easy to do, assuming that a group administrator has enabled the feature.

Facebook has unveiled a new feature: group nicknames. Know what it is and how it works.

Facebook is rolling out a new nicknames feature in Groups that lets people post under an alias instead of their full profile name, a clear attempt to capture some of the pseudonymous culture that has ...