Am I crazy? Perhaps. But why shouldn't we use gist as a blogging platform?
- support for comments
- renders markdown
- support for multiple files, so code examples can be attached as well as inline
- automatic indexing by search engines
- versioning
- free
- not great discoverability, because people don't look on gist for blog entries
- not a great URL
Consider this a first post on the topic, which I will expand over time. Feel free to add a comment below in the meantime.