MSGCNTR-109, a new feature was added to the Forums tool that displays user profile images and info next to the user's posts. Due to different requirements at other institutions (and the possiblity that an institution has not yet installed profile2), it is important that an institution has the option to disable this feature in sakai.properties (see MSGCNTR-109 for original discussion).
So the feature to display profile images will be disabled by default. To enable this feature, you may use this setting in sakai.properties:
Additionally, if profile images are enabled and you do not want to allow linking to the profile information, you can utilize the following profile2 property. If absent, this defaults to true: