[Coda]

With all due respect to Toho, I know the code better than he does, and I've spent more time thinking about the implications. :P I wrote it, after all.

Yes, it wouldn't be that hard to make the existing sellback function give you a few aurum if you sell back an event item (in other words, a step above just throwing the item away), but if you want it to give you back event currency then we have the mess of making sure that you can't sell back event items for a currency that you're not supposed to be able to have! And the list of currencies you can have changes over time, based on what events are currently running, and even then you have problems if we decide to reuse items from a previous event. (For example, if you hoarded before, you might be able to get more event currency than we intended to have in circulation; worse, if we're not using the same currency we were using before...) And not every event item should be able to be sold back, so we'd have to go make sure that we mark the existing event items as sellable or not-sellable. (I've actually done the groundwork to support THIS part, but no one has wanted to do the work of actually updating the tens of thousands of items in the system.)

Like I said, nothing here is actually insurmountable, but it has to be done carefully and thoughtfully.

That said, I wouldn't be opposed to something like Pokemon's Wonder Trade, where you throw an item into the pool and get in return something someone else had given away.