That's exactly why many don't run the official Facebook either. There are third party apps using the web-interface meant to sandbox Facebook so they can't gathe

That's exactly why many don't run the official Facebook either. There are third party apps using the web-interface meant to sandbox Facebook so they can't gather all information. Up until now those web-interfaces have also been able to use the chat though. And you can still do that with some quick apps made to work around this block by facebook.