It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
JESUS CHRIST HOLY MOTHER OF JESUS. First off, turn off the GUI editor. Settings, off. But if you are stubborn enough to use it, at least use it right. If you use the link button, and copy the link directly from the adress bar, you will end up with 2 http://. Delete 1, so many failed links because of this. It's not that hard. Secondly, posting pictures. If it is off of Google, go to see full size image, and copy the link in the address bar. Now, put [img] before the link, then [/img] after. It should look like this. [img](link)[/img]. For videos, it really isn't that hard to click the embed button, and copy that link. And if the GUI is turned off it will work first try. This is not directed at most people, but I think it should be basic knowledge for most of this stuff.