Tumblr recently changed the permalink URLs on everyone’s blog.

For example, this permalink URL:
http://obscurelyfamous.com/post/35650013/

is now structured like this:
http://obscurelyfamous.com/post/35650013/i-always-get-this-same-sidebar-ad-im-a-little/

Since Disqus uses a page’s permalink URL as the comment thread identifier, this change breaks the association of a blog post with its comment thread.

We are working on getting this resolved. Sorry for any inconvenience this has caused and thank you for your patience.

[UPDATE] Jason @ Disqus: Hi, we’ve just rolled out a fix which fixes part of the problem. This will be completely fixed by the end of the day.

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[UPDATE 2] As of 05/23/08 03:00 PST, all outstanding issues with missing comments on Tumblr have been resolved. Please send us an email at if you are still experiencing issues.