title is pretty self explanatory, when you hold click and check someones profile and lvl and all that stuff there should be an option where you can add a bio to your profile with your quests, lvl and name etc. if you dont know what im talking about heres a image of a profile
Considering that your usernames/familiar names/pet names are most likely stored on ROMs, I’d bet that once you set your bio, it’ll be permanent. Just like your username.
GMs are also used for getting people into your worlds and buying/selling items. I don’t think bios will be used for that. Also no one REALLY looks at other peoples bios. Forums have BIOs… do you look at other forumers bios?
p.s. I feel like you’re going to be cheeky and say you do… but do you really… -__-