I’ve received an email from Disqus team, stating that due to copyright infringement violations they will stop supporting my site tomorrow. I don’t know if it will be possible to export their comments and import them back here to another commenting engine, but better be prepared for the worst.
Update: I’ve got the database of all comments made on Disqus. But still there will be another big task to import them to the new commenting system I choose.
Update 2: 750000+ comments are now being imported in the new system. This may take a few days, and unfortunately, nested comments will become flat ones. Nesting will work only for new comments, made in the new engine natively. Same goes for any pinned messages.
I’ve received an email from Disqus team, stating that due to copyright infringement violations they will stop supporting my site tomorrow. 
