Originally Posted by Boraxo

+1 My experience has been somewhat similar - i.e. no comp for something that was important enough for me to send a complaint, and $250 sent automatically for something that didn't bother me at all.

We can easily construct a proposal matrix for 1K voice, no, along these lines:

Domestic/International
Flight Length >2 hours/2-5 hours/6+
Nature of Problem:
Flight Delay/Cancel
Broken Seat
Broken IFE
Broken light/charger
Meal issue
Toilet
Service issue
Other

I would think UA has this already but it sounds like nobody has really given an y thought to what would make sense or be appropriate.