It's interesting how we perceive another person's identity and what we base this on. Just the other day I chatted with Mac on Skype for the first time in months (while he sat on the other side of the room) and had the strangest feeling of meeting Skype-Mac who I hadn't seen for a while and even kind of missed - not because he's better than real Mac, but because he's the first Mac I got to know.
Now, when you mentioned deleting the Boro account in favor of the Kent one, my reaction was "What? No way! I'd miss having Boro around here!"
So at this point, it's out of your hands - Boro exists. (And as far as I'm concerned, he's still 40, since it makes me feel less old myself! Hmm, perhaps I'll start imagining everyone weighs 150% what I do, too...

)
There are people whose ages I know on here who I always think of as older or younger based on personality, anyhow.