Various embodiments provide an evaluation module that is configured to monitor activities of new users and ascertain, from monitored activities, a reputation associated with the new users. In at least some embodiments, the evaluation module comprises an activity store and/or a reputation service. The activity store can monitor different types of actions associated with new users. For example, the activity store can monitor content-based actions that pertain to particular pieces of content and/or user behaviors associated with new users. The reputation service, which may or may not comprise part of the evaluation module, can ascertain from information provided from the activity store, information, such as a reputation category, associated with content-based actions and/or user behaviors associated with new users. Based on a new user's information, e.g. reputation category, the new user can be assigned an activity type which, in turn, defines allowed and disallowed activities for the new user.