Miyavi, what MMM means is that it's just as ok to write Japanese vertically as it is to write horizontally in a western style. Either is correct. A lot of people opt for vertical text when they have a tattoo in Chinese or Japanese as firstly, it fits onto limbs better, and secondly as it looks 'more authentic', but it's not more 'correct' than writing it any other way.

that wasn't clear at all. You should have phrased it different, such as, either direction is fine.

I take "it doesn't matter" to mean something else entirely.

It was clear to me. I think the only one reading such a 'tone' into his words was you.

I'm of the opinion that an argument from a similiar thread was dropped into this one which resulted in the confusion.

maybe so, but that doesn't change that it could mean two things.
let's just drop it?

Please see the PM I sent you, Miyavifan.

Haha, and this, ladies and gentlemen, is how you reach 8,000 posts. :D

I think the tattoo says : It does not matter

I don't see how this wasn't clear.