He actually said f-ing, but the censor puts it to "gingivitus-inviting". I'm curious to see the source of your statement of Americans having worse dental hygiene than the British. But to answer your inquiry, it's because of British actors who Americans may see. For example, Ricky Gervais has quite bad teeth compared to many American movie stars. Not even that it's a bad thing, I feel the idea of having perfectly straight blindingly white teeth is pretty dumb, but that's where the idea comes from. Also, most of the US doesn't smoke anymore, much like most of the world nowadays, so again, I'm curious where you're getting your sources. The US actually has a smaller percentage of smokers than the UK, so there's that. (18.1% of adults in the US, versus 20% in England, 23% in Scotland, 21% in Wales, 24% in N. Ireland).
I do think that Geb was quite rude to you, and to all people from the Great Britain as well, but no need to go to insult all Americans. Also, I do believe his "other *Can'tSayThisOnTV*ing brit" comment was a reference to a particular British person that tends to bring out some hostility in the forum, thus I believe it was supposed to be a joke, albeit a crappy one. And the "Hey, you" is a bit rude, but I do believe, in this case, he was trying to say if you post your problems in the Sega forum you may get related answers, and he is curious/looking forward to your project progress.
While you're pointing out errors, it's "seem," not "seam" in the instances you're using the word, as you're not talking about the line where the edge of two materials touch each other.
That bit of explanation and cheekiness aside, welcome to the forums! Sorry if I came across as hostile or anything, didn't really intend it. I actually am rather curious to see what progress you make, and if you have any electronics questions feel free to ask me. I'm sorry for the rudeness you have experienced thus far, and hope it doesn't continue.