Volaretranslations has now officially migrated over to Disqus for the commenting system. Old comments aren’t showing up for now because we have over 8,000 of them on the site and Disqus is having a bit of difficulty digesting such a large import. I’ve put in a ticket to support and will hopefully have that resolved soon.
All other aspects of Disqus functionality should be working properly, including comment tracking, sorting, and upvoting. Please chime in in the comments below if any issues arise!