I think it just means we have a feature in the software that is not turned on. At Ultimate-Guitar you could leave public messages on people's profiles. Hit the Blog link in my sig to see what I'm talking about.
Yup. Near as I can tell the feature isn't activated.
I "know" this 'cause at the Kemper forum, which uses the same forum software, it shows multiple pages of public discussions between myself and members who've posed questions.