I've heard far too many horror stories of people being forced to abandon lovely characters because others kept commissioning and drawing art of them without the owner's consent, and it's very sad to see.
Being that I have a giant repository of characters I've collected over the years, with every single one of them being precious to me, I'm wondering how I can minimise them being used without my consent, if at all possible.
Especially when it comes to closed species, and the whole concept of copyright and Creative Commons licences being somehow applied to such.