I respectfully disagree with your view on that, and I'm afraid none of your arguments quite convince me - so we'll have to agree to keep to our opinions here. Our views on characters in general might be too different, in the end. And I don't mind characters being reused with author's permission, so it's not even exactly opposing stances. :D
While it is true that there is no commercial gain or marring of original creator's name, some people just don't like their concepts being used by someone else, regardless of intention. I know that I would be uncomfortable if you did it with my characters, even if I liked the new player and trusted them to stay true to the character. Speaking of, if I do ever leave this game for any reason - which I have no plans of doing as of now, but hey, just in case? - I'd like to ask you to not continue using Egret without my approval. (Of course, it's ultimately up to you what you do in your game, though.)
I'm glad you talked to Bedzone though, it does soothe my worries. :)