Not true.
If it's off your computer go to
https://imgur.com/. In the top left corner, click on "new post", locate the pic you want to upload and drag it into the box ("drop images here" or "paste image or url"), or use the browse facility ("choose photo/video").
When the pic has uploaded, hover your cursor over the top right hand corner and you'll see three dots appear next to the words "copy link". Click on the dots, then click on "Get Share links". You'll then see 4 options. The one you want is "BB Code (Forums)". Click on "copy link" beside that code, then paste it into your reply on here. Sort of like this....
Even a Canuck should be able to do that.