Originally Posted by Khabibul35
Do they provide rewards travelers with additional free travel or will look at me funny for volunteering on a rewards flight at check-in?
If they need volunteers, they will be happy to have you regardless whether you are on a reward ticket or a one-way first-class full fare.
I chained a few bumps off of a reward ticket. A couple of times they upgraded me on my rescheduled flight. On all they gave me what every other volunteer received (which was usually a free roundtrip ticket).