i dont know what you guys do, but i just have imgur on my phone, i upload it there, click on something like "get embed codes" and then theres about 8 to choose from. click on the "BB code" and then when you are posting you just need to past that code. once you hit "post" the image magically appears.
the youtube one is simple now whee you just copy the url from the top of the screen and past it into the post.
NOW IF SOMEONE TELLS ME HOW TO POST A GIF ILL BE IN DEBTED!!!