Isso

Comments written in Markdown

Users can edit or delete own comments (within 15 minutes by default).

Comments in moderation queue are not publicly visible before activation.
SQLite backend

Because comments are not Big Data.
Disqus & WordPress Import

You can migrate your Disqus/WordPress comments without any hassle.
Configurable JS client

Embed a single JS file, 40kb (12kb gzipped) and you are done.

Supports Firefox, Safari, Chrome and IE10.

Help

Join #isso on Freenode or open an issue on GitHub.

Or join the mailing list, just send an email to isso@librelist.com.