In the course of writing up Please post NuPIC installation problems here I ran into a few problems trying to include some text files for debug purposes. I was prevented from uploading the files due to format (it allowed images only), and when I embedded the content inline, the message exceeded the character limit. As a result, I had to publish the content to gist.github.com.
I’d prefer to just upload the files directly to the post, and this seems like a reasonable use-case for uploads.