Canít it be easier like other forums, we click a button on the post and chose a file from our photos and it posts?
You can. Click the 5th icon from the left above the reply box (the one with the blue arrow). Click "Browse", select the file from your computer, then click "Add this File". Repeat those steps for each image. When you have all the images selected click "Save all Images" and they will appear in your reply box. It is really easy and takes a few minutes.
Occasionally an image may show up rotated 90 degrees to the left or right. My fix for this (there are probably others) is to select the image in my Files, edit it and rotate it 90 degrees to the left, then rotate it 90 degrees back so it is oriented correctly. When I click the edit button again it re-saves the image and it is oriented correctly. Never had an issue posting pictures this way.