Very cool plugin. The most comprehensive Open Graph one I found. I would like a little education on one aspect of it...
I know this question was asked about 1 month ago but it was not actually answered in that thread.
The fact that no FB ID is required to use Open Graph or documented on http://ogp.me/ makes me wonder what is the purpose or benefit of attaching a FB Personal ID or App ID?
If there are different answers for each ID type...please elaborate.
Also, should I create 1 App ID and use it in the plugin for all the website I manage? or would it be better to create a FB App ID for each website?