PloneboardComments (1.0.2)

It has an overrides.zcml file which overrides that standard commenting template, so as soon as Zope is restarted the standard commenting doesn't work and PloneboardComments needs to be installed via the Plone Control Panel.  After installing, add a Ploneboard and Forum, and then a PloneboardComments object in the Plone root.  Configure the PloneboardComments object to point to the newly created Message Board, save and then edit again and select the right forum.

PloneboardComments is "context-aware", so if you have one PloneboardComments object in the root, and another in for example /intranet/ - comments in intranet will be "ruled" by the closest PloneboardComments instance, the one in /intranet will override the
one in the Plone root.

The PloneboardComments features are controlled by the "Reply to item" permission, as well as the "Discussion enabled" portal_types property, similarly to how regular Plone comments are controlled.

Note that the code that creates Conversation items in the Ploneboard Forums (in content/PloneboardComments.py) does not check whether a
user actually has permission to create a Conversation item, this is considered an OK solution as a user can only create a conversation on an object they have discussion rights on.

Only available as a product add-on right now, too much work to get it wrapped up in an egg.  Any good howtos out there?