When the porters fight, they dive into their problems and talk about them at length. their fights are sprinkled with remarks such as "i see your point" and "that must have been hard for you." the porters are best classified as: 1. avoiders. 2. hostiles. 3. validators. 4. volatiles?

I believe the answer is: validators

In psychological term, validators refers to the individuals who give a certain acknowledgment and acceptance toward the behavior or emotions that displayed by another individuals.
If validators involved in a certain conflict, all parties involved is much more likely to achieve a certain common ground/compromise compared to conflict without any validators