Comment by belorn

Lets compare it to an other type of volunteer based work, after school activity for kids. Some of those are going to be free, run by people who volunteer (usually other parents), with disclaimer policy that say that any responsibility is on the parent and no liability may be put on any of the volunteers.

Is there a social contract that put some expectations on the volunteers who are organizing the activity/event, and is that the definition of entitlement?

I would say there is such social contract, and when people expect too much of it there is also entitlement going on. Where the exact line goes is gray zone.