I stopped using coComment for a long while, and that turned out to be a mistake: I stopped commenting on others' content altogether! I'm back on coComment, and I'm loving it. If you visit my user page, you'll see that I'm actively commenting in many places.
One of the biggest problems I have with commenting is that my comment (that is, my copyrighted content) is no longer under my control. coComment gives me the ability to capture my words and store them away safely. However, it doesn't go far enough (and can't). In particular, I want to have a little signature at the bottom of my comments that points back to my own site, to the original comment, together with a GPG signature.
So, for example, I might go to Andy's blog and leave a comment that says "Maintain your blog!". Before submitting the comment to his blog, it would receive a unique identifier from my blog, get cryptographically signed, and then get submitted to his blog.
I've also considered that some sites might not like a link at the bottom of
the comment; that's why it's unlikely that the little signature at the bottom
of the comment would be a direct link to my site. I've also considered making
the entire thing a block of text that search engines would treat as a single
entity, so that the signature could be searched for easily. Perhaps it would
be along the lines of
I do wish that blog systems supported cryptographic signatures in a smart way. OpenPGP and GPG can help establish identity because they intrinsically depend on a web of trust. Building such tools directly into blog systems seems like a good way to help people interact with trust. I could be wrong, but those have been some of my recent thoughts about commenting.