I'd like to get a priorized performance at the server
Just joking.
I'd love to get a special "addon dev" or "Community supporter" pet that we can show to others, or a title as you proposed. I don't need any items or ingame gold or free play time, as i'm happy to play with my friends (this is what the game is designed for).
I'm also happy if I don#t get anything as recognition, as I myself didn't help the community as others do here. But maybe ZOs will think about any special present that "lasts forever" for some of you/us.