I can fully understand the discussion forum settings not allowing the posting of images when you just have created your account. But if you first contribute to the discussions and interact with other members, the forum software wages that information and upgrades your account. Then, you can even carefully cash out some of your personal karma and post memes (very sparingly) like the one below.
There’s the Tutorial section in the forum that new users cannot post in there. You can post in another category and then someone else (like myself) may move to the Tutorial section. It is important to be OK to make enhancements to the text, including the fixing of typos, etc. As much as I would like to write Windoze, in the documentation it should be Windows.
What I suggest is to start with a post that describes how to test IncusOS on a USB stick, explain how to deal with the IncusOS requirements while on USB and take it from there.