I've had that offered to me a few months ago.
Never thought to post it on FT, as it didn't seem that big a deal that Mr. Chicken was offering a free domestic RT for VDB compensation. Now, if I could get him to offer $$ vouchers for VDB compensation, that would be newsworthy.
FWIW, I think the "volunteer for a later flight, get a free RT anywhere in the lower 48" is pretty worthless.