I think if you were to do an Osaka version of this, the list would be limited to maybe 4 of these (licking, chopsticks upright in rice, passing between chopsticks, and pointing esp. toward a senior would be taboo).

Whereas when I had a date with a girl from Kyoto, one of the first things that happened when we went to eat was she had to stop me from picking up my chopsticks impolitely and show me the proper way of doing it.

Suffice it to say my Osaka-learned table manners and speech patterns meant there was no second date.

There's equally complex dining and utensils etiquette in Western culture but it's largely omitted (or even unknown) on daily basis.

I’m Japanese, but honestly, I don’t pay much attention to it. My parents used to get on me about it when I was a kid, but I still do it sometimes.

You also see plenty of americans put their elbows on the table.

I've seen those too. I was going to say that I've seen people put the bowl to their mouth and shovel food in with chopsticks, but now that I come to think about it that might well actually be from the series Tokyo Diner and Takeshi Kitano films, and may be deliberately uncouth characterisations...

it's like western etiquette: upper class, fine dining traditional practices are not what you'll see everyday even among polite society. the spectrum of behaviors will also depend on one's company.

Yeah? How are you supposed to line up the sticks? And stir the soup? I think the "Mawashibashi" faux pas is to whip the soup like a madman, or to aimlessly swish it, and the translated listicle doesn't convey that.