No edit, just a delete and redraft option. And for very good reason.
@Heucuva8 @Gramdma2011 Exactly.
On my blog, I use Disqus as the commenting platform, and people can edit their comments. I had a particular poster who would post something, people would respond to that post, and then she'd completely change the content of her post so that we all looked nuts. Needless to say, I made it clear she was no longer welcome at the blog.