I have been reading this thread with interest, and thought I would add my 2 cents as well. However - I am not really sure on your intent for the thread Morgana, or rather the openness or lack thereof you meet the answers with. You see, when people post that they don`t pvp because of:
...The posters that went into the "I don't like PvP because all of the PvPers are 13 year old jerks that want to ruin the game for everyone else" posts, that's exactly what they are doing...shutting down, becoming defensive, and not being honest with us, or themselves.
.. that IS their reason and it is as much a valid reason as any other. Sure, there may be other reasons as well, but since that is what they choose to write one must gather that is their main reason. Who are you to tell they are not being "honest"?
Me: I didn`t start playing UO until the facet-split. I choose not to, since I knew I wouldn`t be enjoying myself at all. I read tons of posts on usenet describing what went on, and wouldn`t touch UO with a stick back then. Eventually I decided to join with LBR. For me the main reason to wait was choice. I want to be in charge of my own playtime. Since then I have rp-pvp´ed which I enjoyed immensly, I have been doing Fel Idocs and had a blast, done Em events in Fel, and all my resource gathering is done in Fel as well. But I don`t pvp on a regular basis. Here are my reasons, in no particular order:
Incentive
I need a bigger reason to pvp than just to "beat the other guy". I have no interest in that, it doesn`t give me anything worthwhile. I don`t play UO to compete. Yew Fel pvp is to me as interesting as watching paint dry. Rp-pvp provides the overall reason to some extent, IC you are fighting for your home, your beliefs etc. It sets the rp-pvp apart from any other pvp that occurs. I haven`t tried factions - but from what I gather it`s the same there. No overall goal, no story.
Time
Even if there was an incentive for me to partake in pvp on a regular basis, I am not sure I would have anyway. Reason is invested playtime. To be good in pvp you need to devote time in it, and since I sometimes have little time to play I choose to spend that time on things that interest me more. Whatever choices I make in UO I need to invest time, be it crafting, imbuing, decorating, vendoring, hunting or whatever. My allotted playtime is limited and I don`t even have time enough for all the things that do interest me. I still haven`t "finished" the added content of ML for example. In that competition of things to do, pvp is way down on the list. Especially since it would probably require more time for me than someone who were a bit younger.
Reason to play
I play UO because I need to place my brain somewhere else than RL, a place to rest where it`s focused on other things for awhile. It`s pure relaxation. I don`t need an adrenaline rush, I am not looking for a kick. I need a place where I can put my hat down, put my feet on the table and be completly focused on whatever task I set out to do. The goal isn`t really an item chase, the ultimate playgoal is the relaxation the playtime gives me. The stressing down from RL demands. In that, pvp is counter productive. While it is a real focusdrive, it also adds stress and adrenaline.
Carebear
I am, and proud of it to. I wouldn`t dream of imposing my play on anyone. If I did pvp I wouldn`t go after crafters or anyone just visiting Fel. It would be more fun to me if I pvp`ed with people with the same mindset.
Pvp-crowd
I am appalled by the trash talking that goes on, the immaturity on display, the pissing contests. Whether or not they are all 13 year olds doesn`t matter, as long as I feel that is what they show their maturity level as. So, even if I did find time, did have an incentive to pvp on a regular basis - if that were the crowd I would have to associate myself with I would decline. You meet some of it even in rp-pvp. The competitive aspect of pvp seems to bring out the worst in people. I have no desire to let trash talking be a major part of my UO experience.
Added note: However, I like that there is the option of pvp in UO, I view the facet split as the most enjoyable pvp-solution in all the games I have played. It adds another dimension, an added choice. I don`t have problems with events being played out in Fel, but I do think quest chains that takes place there need to be carefully laid out. I think the book added as nr 9 in the recent quest chain has to be the worst design choice in history. Not because it was placed in Fel, but because the placement just was an incentive for griefing. I attended another Fel event this winter, where we had to fight some dragons and our opponents were reds. I had a blast there, with a huge open space to fight in, completing what we set out to do while fending off the roaming reds. The static books in Fel was just a poor design choice.