You missed the point by
jamesdak above. You can upload pics to your gallery. Regular members can help by posting a link to your gallery, like this,
https://www.bikeforums.net/g/user/577037
All you really need to do is open an earlier post to edit or add a new one. The "Upload" button will be on the toolbar and allow you to select pics to add to your gallery. You don't need to actually post, only use the upload function. Then your pics will be visible at the link above.