In 2013 the Note board is deprecated. It has actually disappeared from a lot of O365 tenants and its use is discouraged in 2013.
However the new replacement is a site feed and doesn’t appear to let you leave comments on individual pages. What’s the score here – is that not possible now in 2013?
Are there any 3rd party replacements anyone has used? This is on-premise at the moment with a view to move to the cloud in the future.
Just a thought – would something like Disqus work? Just done a quick search and it looks like they do single sign-on with Remote Domains, but it’s not clear whether it will allow you to integrate with your local AD or not..
https://help.disqus.com/customer/portal/articles/236206-integrating-single-sign-on