Not weirdness, but do you have any plans to allow direct copy-and-paste of images as some other sites do rather than have to go through the save and upload and thumbnail procedure? For example, the "Snipping Tool".
I think I know what you mean, drag and drop images directly to your post? I think that would be a great add-on. It really depends if we stick with vbulletin for the forums or switch to maybe xenforo which is picking up in popularity in recent years.