on blog posts that are getting spammed to death, we want to be able tot turn comments off. I clicked the 'allow comments' in the backend but this stopped any comments from being seen, while still showing the number int he header (i.e you have 20 comments'). You want to have any previous comments still showing just have a little message saying 'you can no longer comment on this post'
And if anyone has any help for getting akismet working, this may solve the problem altogether! ;) - see forum post: http://www.silverstripe.com/feature-requests/flat/534?showPost=542