View simple version of a topic

I am not sure if one of those options is what you are looking for. Both still show not only the text but also, for example, the post author.

You can Print a topic as a PDF by adding /print to the URL. For example, is printed like this:

Discourse also offers a raw view.
Therefore, you can replace the /t/topic-title/ in the URL with /raw/. If there is a post number at the end of the URL, you see the raw of that post; otherwise, you see the one for the whole topic. However, the author and the post date also appear in the raw view.
The topic looks like this in raw view: