I am experimenting with switching from the Google/Blogger comment system to the Disqus system, which in my experience as a commenter is quite superior.
One consequence is that the old comments have disappeared—worry not, your words have not joined Lois Lerner's e-mails. They just don't show up as Disqus comments because the software to export Blogger comments to Disqus is currently broken. As soon as that problem has been alleviated they will show up in the Disqus system.
Comments on comments very welcome.