Ashish You were in Akismet banned list and i manually had to un spam your comment thus your id. Generally, if you are banned by Akismet your messages will go under Spam folder which people don't often check. But i got the email confirmations too so i had to manually un-spam your comment.
KnightKnetwork With the current versions of the plugin it won't matter and you do own your comments, with the comments sync'd you have all the comments locally so if Disqus loses your data, then it will just resync from your blog.