I've been posting on blogs that use a disqus verify tool to screen spam comments.
I have set up an account and have added my link in the profile section, but I am not entirely certain that this is of any real value for backlink juice - since it is buried off site and takes a bit of work to find if you are seeing just the comments on the blog.
Does anyone have an opinion on this? Is it still worth the effort making the comment and do you value the backlink as worthy in it's own right?
Be really interested to hear your opinions on this one, as disqus has a really good reputation to curb spam commenting.