I've had something like this for years as my personal cms. Lately I've seen a lot of valuable content hosted on closed platforms like g+ or even facebook and it makes me kinda sad - the people are willingly gifting their content away. If these companies decide you are no longer valuable to them (real name debate, anyone?) you may loose all of your stuff.
If hackerhub goes offline tomorrow, every user will still have their content.
https://github.com/saibotd/embeddit