Easydiscuss handles redirection very well when the category’of a post is changed.

But there seems to be a serious redirection issue with easydiscuss when :

1. The discussion is deleted

2. The Title/headline of the discussion is changed by the owner/moderator of the discussion.

In these cases, the post is not found by Easydiscuss, and it redirects user to Home page with the message "post not found error".
This means it intercepts a 404 'page not found’ error and returns to Home page.
This produces a "soft 404" behavior in my google webmaster tools, and is not recommended by Google.

Please help.