I've never been IDB, and I hope I never am. HOWEVER, I have a question in case it happens one day.

Most of my flights are for vacations, and usually involve a connection. Are they less likely to bump someone who has a connection to catch, do you think?

If I tell them missing the flight I am being IDB from (say, Orlando to Atlanta) would cause me to miss my connection to, say, London, are they obligated to get me to London, even if they are on separate tickets? Or am I SOL on an IDB?