How do I post a picture, you ask?
easy! copy the url for an image that is already hosted (aka stored) ONLINE. e.g. Flickr, Photobucket, etc.
add 'img' tags around that URL in the message you want to post, like this...
[img]http://www.photobucket.com/yourpic.jpg[/img]Which link do I use to paste between the image tags, you ask?
It depends on the service, but for Flickr, you first click into the image while logged in. On the right side is an arrow, click that to 'share'...select 'BB Code' but you may need to edit down the 'BB Code' link they give you.
For instance it might give you something like this...
[url=https://flic.kr/p/27j8YBb][b][img]https://farm2.staticflickr.com/1774/42212281400_a6ebe5f96f_b.jpg[/img][/b][/url][url=https://flic.kr/p/27j8YBb]DSC_2680[/url] by [url=https://www.flickr.com/photos/munclimber/]Mung3 Climber[/url], on FlickrBut you just want the bold part. Copy that out and keep the img tags.
Then it looks like this in the edit window
[img]https://farm2.staticflickr.com/1774/42212281400_a6ebe5f96f_b.jpg[/img]But then it displays like this when you post it...
