Supports receiving comments via Webmentions (via URL or comment using commentpara.de), or as back-feed from twitter if a post is syndicated there. The back-feed Webmentions are generated by brid.gy.
The comments via commentpara.de also get parsed for Markdown (including the triple-backquoted syntax-highlighted code blocks).
Pages are marked with h-feed, h-entry, and the nested p- and u- as needed. Please ping me on IRC if you find something incorrect or unusual about my microformats2 markup.