I think, for obvious reasons, many chairs should remain untradable and not be transferable to other accounts. However, especially for older accounts, it's sad to have so many event chairs locked to a single character on that account and be unable to access them on other characters. I was wondering if this could be implemented, whether through making them 'transferable within account' or having them be identified in a way similar to Cash Shop items where they can be stored and moved, but only to other characters on that account. I don't see such a feature being abusable as they would still be locked to the account that received them, and it would of course not extend to equipment, quest items, or similar items that are specifically locked to characters for balancing/gameplay reasons. If other people feel similarly, or have a different idea of how it could be implemented, feel free to share below.
also not sure if possible, but +1 for the fact that my set-up inventory is full of untradeable chairs