Do you keep bad comments in your blog or forum? If it’s a constructive criticism maybe I will not delete it (if ever I have a blog or forum).

The only bad comments that I delete is "spam" ,

If these bad comments are criticism, but contributing to the topic, why remove it? Just improve and move on.

im open with bad or good comments and like Digital Friend say i also delete spam comments

I get rid of spam comments, which happens to be around 95% of the comments I get.

Deleting criticism will never allow you to develop. be only afraid of spam enough to delete it.

Just read them, after that then just deleted

Surely we will keep it, unless the spam, as you may see this is common behavior for everyone experienced in blogging. Deleting relevant comments could bring you to complete absence of comments.

Yes, I always delete bad comments specially if they're untrue.

As long as the comment is not with backlink purpose only and posted by real human I would not delete it.

Spam goes...most comments stay....
Once tracked down an aggressive comment to a private posting company.....
asked the client to have them stop the cra*....and to my surprise they stopped and apologized.....)))))))

Some users write odd comments using the unsocial languages.They should be deleted.It will indicate that the forum and blog got some restriction.When we are rplying to a forum or blogs, the reply should be related to that topic.Otherwise it wont be a proper way of discussion.

I think abusive language should not be tolerated even if they are critical comments that may add value to your post.You can reply politely to warn them if its the first post.

I delete spammy, and offensive comments only. Just like the majority here.

I only delete all Spam Comments

Originally Posted by SiberForum

Deleting criticism will never allow you to develop...

I would rather delete the criticism. It is too much effort to develop if you are happy the way you are.

I'd like to share this article on spamming blog comments

http://www.webpronews.com/why-seo-disgusts-me-2011-06
picked from another forum)

It depends on how you interpret a comment. Yeah I agree with the about posts. It can only be bad if it is a spam.

I consider spam a bad comment, and for sure I will delete it; but with regards to constructive criticism I guess I will retain it and change for the better.

Originally Posted by daisies1062

I consider spam a bad comment, and for sure I will delete it; but with regards to constructive criticism I guess I will retain it and change for the better.

yeah me too. Then I will wait for the blog commenter to comment again and see the improvement after his constructive criticism.

I delete spam and irrelevant comments intended to post just links, criticism is always welcome but if it is in decent language.