Is it possible to post a pdf file of a published article to MO as background for a question? I have searched the help for this. I know we can post specific citations to published articles, but this is very inconvenient if the published article is not publicly accessible online.
No one in the discussion above answered the posted question directly. The answer to the posted question seems to be No, a poster can not post a file on MO.
To clarify, I did not mean an inline posting. I meant a posting with a hyperlink to the file. I can arrange to post the file on my website at my institution, and then put a link on MO, but my website may not be permanent, or I may move, and then the link would come up dry. If we could post to MO, then presumably the file would last as ling as the question on MO --- they would both live or die together.
There are several perfectly good reasons that a literary reference can help a question. It is not required for the posting. It is background. It is a perfectly valid MO post.