Moving this over to the Game Opinions & Ideas board.
Very interesting suggestions. I'm not too sure how much of this would be possible due to lack of source code, but especially the different lies sound pretty neat. With the animation options, we replaced the buttswing animation with the moonwalk, but a few may have noticed that we didn't change the name-- this is because we are not able to. And with reason, I don't know how possible it would be to add now animations (rather than just being replaced.) I'm not an animator, myself, so I know some people would probably know a bit more about that than I do, but hopefully this goes to respond to your suggestion. I kind of like the idea of invisible wings. In regards to the name tagging, I think the tags that we have now work pretty well for the game that we have. While having the definition of being male or female would certainly help clear up anyone confusion, I don't quite know if it's a necessary quality to add. The name/username tag has been created in the simplest way so that it's easy to read, and having any extra added text might clutter things up (especially amongst all of those characters around The Grounds c:) Some users may choose not to disclose his or her character's gender for a few reasons, or there may not be an option for them to select something else besides male/female, and so this is another thing to consider (some people even but the characyer's gender in the tag, so it wouldn't be impossible for them to put the info in their name.) I think bios are a good way of describing a character in detail, and if users should feel the need to clarify details about their character, this can be done in the character bio.
Good suggestions! I'm interested to see what else you have in mind to add.