Yea, I've reported those issues too. It sucks, specially for the blog comments and forums. I would be nice to see an official statement on the status of those. Are they being investigated, will they fix them? IDK time will tell. lalrochhara
Meanwhile you have to use third party widgets for comments like HTML comment box, disqus or facebook comments. For guestbook you can use X.t.c.a.t.'s which is still working. And the forum we just have to wait for a fix.