If someone had some of my equipement and decided to sell it to the NPC Shop would I get an event telling me that they had sold it, or would I just have to notice that my items are no longer in my inventory?
I recall it being discussed when I was testing NPC Shop item selling. I even suggested that there should be an event to owner at least notifying them that their item had been sold at an NPC shop (not by whom or where). The Dev responsible said they were going to stick with No Event for the owner, and no consideration for protected items, and see how it goes. Open a suggestion thread if you want this to change.
Bug report the Trophy-selling attempt in detail if you can't figure out what the issue is. Ownership definitely doesn't matter. It ought to let you sell anything on the ground or in containers you hold.
Yes, apparent bugs are likely the result of trying to sell to the NPC Market instead. Is it even worth preserving players selling to NPC Market for Items in this case, or having items on the npc market at all? Possession is all that matters for using them, so if players or factions drop them into unowned they become little treasures to discover.
"On two occasions I have been asked,—"Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question."
- Charles Babbage
I suppose that's a good point - Notwithstanding my opinion on the 'claim' button oft-requested, I believe in both circumstances* of items being on the NPC Market there's no expectation of retaining ownership by the former owner. The only question I'd ask about it is whether the Location Information shown is useful to point people towards 'unclaimed' little treasures from death.
*(from purposely selling it, or alternatively Death/Dropping).
There are less NPC Shops around (have to request Admins to add them) than there are NPC Market locations, though. So perhaps alter it to eliminate the confusion altogether: Sell to NPC Market permits non-ownership of Items, just gives the credits and doesn't post for sale on the Market. Death/Dropping still posts Items for sale on the NPC Market.
I'd love a "Claim" button on all items, but the opportunity for abuse is astronomical, especially against factions who deal with a lot of items. On that same token though, having the item in your possession but being unable to, say, apply a custom image to it (while safer and less likely to be abused) just doesn't make sense. Like saying I can't spray paint this armor I found orange due to some magical protective field.
As for the NPC Market, buying and selling items on it has always seemed useless to me at best. It seems like you can rarely access whatever items you purchase anyway, and I can't tell you how many times people have bought items off the NPC market specifically to ransom them back to whoever has actual possession of them.
Custom images can be abused as well. And by the 'magical protective field?' argument, you could spraypaint a Ship, too. Custom images go way beyond spraypainting anyway. You get items that are very different (customized...) from the default image. Considering it's all about aesthetics anyway, I can't take the bunched-up-pantaloons from some people (present company excluded) due to that restriction seriously.
Re: Ransoming Items (just an anecdote)
I once bought Alven Ceres' lightsabre off the NPC Market on a whim. Never really thought about 'ransoming' it. I ended up contacting the JO and sold it back to the proper Owners (JO) at-cost. At-cost was far far lower than any ransom would have been from any other individuals who bid lower than me, so it all worked out. Would've been nicer if they had agreed to give me possession, but they apparently would have rather recycle the lightsabre than let someone else keep ownership.
Oh trust me, I have no problem with the practice of not letting any strangers custom my items. Frankly, I'm pretty pleased with it. I was merely pointing it out to strengthen the argument for a "Claim" button, is all.
Maybe to add a question to clarify something on my end. When somebody sells an item he does not own, but has access to, who gets the credits for the sell, the owner or the "seller". What I understood, the seller, correct?