Do I need Open Graph Support to be checked if if I don't what happens or what will not happen

Do I need Open Graph Support to be checked?, and if I don't have it enabled what happens? or what will not happen?

Let me start from the beginning.
I bought a meme generator plugin and it would not work or show the meme photo ( you can see the default image that only showed before the imbed-ed image shows ) to write the content on. the plugin I bought is from here http://codecanyon.net/item/meme-generator-wordpress-usergenerated-content/3768291
on my site the page that has it is here http://www.photopinups.org/10-guy-meme/
If I disabled Ultimate Facebook it worked fine. (by the way the two tests were with all plugins disabled except for the meme generator and Ultimate Facebook when needed)
Then I went a step further I started disabling features inside of Ultimate Facebook and What I found was if Open Graph was not checked on the Generator Worked. When checked and on it Did not load the Embed-ed image.

Now getting back to my question
Do I need Open Graph Support to be checked?, and if I don't have it enabled what happens? or what will not happen?
I use autopost and comments, I don't use the Like button from it I have another plug in for all the major Likes, shares and email (ShareThis)
If I do need Open Graph for what I'm using What would cause it to stop Meme Generator from working.
I know I'm asking a lot of question I would really like to finish up this project I have over 600 meme image templates to post for this plugin. :>