This is a cool idea. But given how people have been suggesting for 8+ years that we be allowed to have more than 1024 characters for our character descriptions it would seem the Devs are fairly reluctant to give us more customizable text space for anything. 
Loth 50 Fire/Rad Controller [1392 Badges] [300 non-AE Souvenirs]
Ryver 50 Ele� Blaster [1392 Badges]
Silandra 50 Peacebringer [1138 Badges] [No Redside Badges]
--{=====> Virtue ♀
I'd like to see the ability to change our pets' descriptions. Seeing as how fire imps can now be made yellow or black or white, and many other pets can be changed, it would be nice to be able to say that the pets are actually other creatures in their description. That way when people click on our pets and read the descriptions, they would get additional game content and backstory that would enrich the game for them and us.