I don't think its subjective, I mean, if Trust is measuring their body temperature and so is Sidoh, technically they should get the same results, once conversions are made to the same temperature measurement unit. Maybe Trust is determining how hot they are by an external temperature, and Sidoh and his three friends were measuring it internally. Since I don't know how in the world Sidoh, even with a team of friends, could measure their internal body temps from a picture, I'd have to agree with Trust. You can see the one on the right's nipples sticking out through her shirt, and that indicates that she is indeed, cold, or not hot, if measured by the external body temperature.