Ok, so I'm posting this from my phone (iPhone 6)
If you get the Imgur app, and make an account, then you use the upload button to select photos
When you click it you get the screen to select the way to upload your photos, use the 'camera roll' option
And when you get the screen to select from your photo library, select the photos you want, then click 'done'. When you get this screen, click upload.
When they are uploaded, you can access your photos by going to your account page
Then you click 'uploads'
And when you touch-and-hold you'll get this screen, click 'copy link' to get he image link
After you do that, go to Bladeforums in your browser and start a reply to your thread of choice, then click the 'insert image' button
You'll get this screen, switch to 'from url' and uncheck 'retrieve locally', then paste your image url and click 'ok'
You should then have your link surrounded by IMG tags in the text box, when you post your comment the link should display.