Actually, this is not entirely true. Here’s how to do it… involves disabling javascript in your browser before loading the topic. Produces a very passable view suitable for printing or saving as PDF.
I am extremely excited to see this pull request and discussion happening - print view is one of the most asked for features for my community… we have alot of folks in “internet remote” locations who would love to download and read topics offline. Also we use discourse for collaboratively creating documentation that we’d like to be able to share beyond discourse.
What I would really like actually is a link on the sharing link on the popup that then downloads as a PDF the whole shebang (when sharing link at bottom is used) or just an individual post (when the post timestamp is used). That can then be shared or printed out.