Why do you assume I am a funny guy, just because I do not share the same views as every other foreigner?
Your opinions aren't what's funny. It's the fragility of your ego.
Are you married to a Japanese woman?
Yes
Do you live in Japan and have children in Junior high school?
No, I'm a teacher at a private junior high/ high school. No, I'm not an ALT, I'm a licensed teacher. I was a homeroom teacher for my junior high students last year. I got a pretty good look into a typical Japanese marriage life.
Beyond that, I'm someone who spent a lot of time gaming for the purposes of finding the best possible candidate for my life partner, and quite a bit of that with Sinapse, and follow a lot of the same principles he does, which have helped me arrive at a very healthy and fulfilling relationship with my significant other. See, I know that you don't know anything about game when you feel that the mindset of gaming and commitment are mutually exclusive. Sinapse and I learned the same principles for two different goals. However, you (and your wife apparently) felt it necessary to add in your two cents to a world you know little about.
But here, let me break it down for you:
Fashion in Japan is broken down into several styles, each with magazines correlating to those styles. The gold chain you can see not only in the rich old man category, you can find it in the Male Gyaru-kei, Celeb-kei, Ora-ora-kei, Amerika-kei, and yes, foreigners as well. If, the type of woman you're interested in is apart of one or more of those subculture, your fashion can play a big part in relating to her world, and creating comfort, one of the chief goals on initial approaches. It happens that Sinapse is attracted to women in those subcultures, thus dresses in a way that relates to them. Don't believe me? Hop into a convenience store and take a look at all those men's fashion magazines. Go into stores around Shibuya / Ginza and look at the mannequins. Hop over to 109 mens and take a look at the accessories shops and draw your own conclusions.
See, this all ties into your POV in the white day thread. Because your wife doesn't like something, you apply a broad brush to all of Japanese girls when there are many subcultures that are outside your wife's point of view, even the standard cultural norms. When you experience a wide range of Japanese girls from all kinds of subcultures, you start to realize that Japanese people are very different from each other, despite the strong groupthink mentality prevalent when tatemae-mode is active. The honne is the important piece that needs to be uncovered to truly connect with women and form lasting connections. It's that piece of Japanese people in general that are where you can get into who she is as a person. In that way, you'll find guys like Sinapse are much better cutting through the surface and getting to know the girl for who she is a lot faster than your average guy.
There are commonalities you can observe, but there are hundreds thousands of women out there who will blow that stereotype out of the water, especially the younger generation that are adopting many western values and influence; far more than your wife's generation. The point is, you don't know what any of the other members or their wives, or significant others, or girls they've been with are like. And for you to come in with sweeping statements like you have because "my wife said so" is exactly where your attitude problem lies. Your wife's opinion of Japanese people is one voice in the hundreds of thousands of collective women that we've experienced. I've had Japanese girls go all out and spend over 100k円 on valentines day for me, I've had girls that threw money at me and said "Go buy what you want" and I've had girls that did absolutely nothing. What rules do you think you can draw from that? Sinapse himself has been with hundreds of Japanese women. Why should he or anyone else listen to you or your wife (who he's mentioned is not his type) over the hundreds of girls he's been with?
The fact is, your world view is so wrapped around micro-examples that you fail to see the broad scope of women out there.