There should be the option to change the size of an image when posting, like the Discord widget.
When you inspect element on an image you can notice
we should be able to change the size of an image with the percent or by changing the pixel width like the Discord widget.

For example, Sora's post, notice how large the image is but when you right click the image and select inspect element and change the percent from 100 to 20 you notice how it is a much more reasonable size.
Normally we would just put the image into spoilers but spoilers take up just as much room if not more.
thanks for coming to my ted talk