No.
A blog is for posting blogs. You can also post other random stuff, such as what you would see in an off-topic forum.
Off topic is for posting off topic discussions, not blogs.
Technically, his "blog" type post, is still Off-Topic.
It fits the rules of the board, and it's not related to Blockland the Game, Modification nor is it a file.
There's nothing to say he can't post this in the Off-Topic section.
Anyway, how long are you suposed to have Braces for?
I've never had braces before (probably should do, but most of my teeth are straight) but apparantly you find it more awkward once they're out.