I choose not to refer to myself or other people with philosophical terms. I prefer to use the words to describe specific arguments. Basically a person can make a deontological argument without referring to themselves as a deontologist. I think the scenarios of life are diverse enough that a person may find one way of reasoning more applicable in a certain realm and another in another. Or you could even want to justify an action with multiple arguments. Sometimes, I make deontological arguments for my social relationships but I don't commonly use them outside. I often find utilitarian arguments useful, but they also have their limitations.
I didn't enjoy giving up wool when I became a vegan because I was a needlefelter. I also don't think anyone can deny that wool is a material with great properties.
But in the reality of the world we live in, and specifically for me, my use of wool is potentially tied up with a system of live transport. Typically when animals used for wool reach the end of their lives, they're packed up on ships in a brutal manner and sent to be processed for meat. I'd hate to make a mistake and accidentally support that, either by making an errant purchase or stochastically inducing someone else to buy wool who would likely buy it from that system instead of mutualistic scenarios.
I don't really have a enough of a problem with someone buying secondhand wool to protest it. There are products that I purchased before becoming vegan that I'm using until the end of their lifespan.
Personally, I don't necessarily have a problem with mutualistic relationships between animals and humans, such as we see in certain sanctuaries. I'd be willing to evaluate moral decisions in such situations on a case by case basis. But I do think that in today's climate, animal welfare is just a smokescreen for animal exploitation. So many people justify eating meat from CAFOs with the idea that they buy from family farms some percentage of the time. The urgency for me is to stop the massive exploitation than to entertain edge cases, and the way to do that is to advocate veganism.
As to whether it would be morally neutral for me to eat an egg from a backyard hen in specific scenarios, perhaps it is. I just don't really see why I would, when I don't have any real reason to. I think that feeding eggs from rescued hens to other rescued animals is potentially justifiable, although I would want to learn more and rule out alternatives before I would confidently vote yes that its ok to do it.
I think you picked up what I mean about democracy playing a factor.
I would have to ask around I think to find out the answers to your questions. It seemed to me that there were about 10 or so people in the "community kitchen" at any given time, which in this case was a specific permanent structure on the land that had cooking facilities. One of the main things they did that I know about was make a huge batch of burritos that they would distribute to people volunteering for other functions (such as fire safety, leave-no-trace patrol, parking, rangering). But in addition to this, there were also numerous theme camps that had kitchens. But I don't really have even a rough estimate of what percentage of people were volunteering to make food for others. The event was around 2000 participants though.
I think that the combination of established kitchen and decentralized kitchen worked together to cause the sense of an abundance of food.
The experience of sharing was basically that while I was walking around, occasionally someone would say "Are you hungry?" and if I was they usually knew where I could get some food. And it was basically like, if you were in the area when a camp was making food, they shared the food with you.