While It's not perfect, I feel that the thread's OP (as of it's last update yesterday) isn't so badly written... Also
@RCXDan's TLDR is pretty good.
I've also read about the subject and encountered various similar events elsewhere, so that might be playing into my ?objection?
I do want to mention this, Just because you've personally not encountered real bad actors, doesn't mean they don't exist. At this point I would think we all know about the (real) horror stories of people even getting killed by Swatting over some ridiculous reason, but if you don't, a quick search should lend you the knowledge quickly.
Even if it's not as extreme as that, a lot of the suggestions here are pretty good rules of thumb anyway, especially self-discipline and transparency (while keeping personal information private).
Sometimes, all it takes in one bad apple. Hence this need for caution.
Edit:
Also
@SigmaSuccour is correct, Kindness really is a good virtue to nurture. That way when people claim you're some bad apple, they will at some point be ashamed because of your good testimony.
Regarding the whole, Japanese VS Western thing... Isn't this a little bit too much like picking on the one off detail? (I mean it can be discussed since it's part of the post, but almost exclusively focusing on that feels wrong IMO)
Now, while I've sometimes felt a similar to
@48Tentacles, there's actually a lot of reasons why it's a bit unfair of a statement.
The wildly imperfect Comic's Code really hurt US-based comics
(can't really speak to europe, since I know even less about the situation there), even causing the monopolies that are DC and Marvel (which only recently started to lose their hold) which is also a big part of it.
Meanwhile in Japan, (though they had some strict rules as well earlier) actually managed to have/keep multiple genres pretty early on (perhaps in large part thanks to Tezuka's wide range of stories) also the extreme competitiveness somewhat lends itself to for a push to rise above others , which can be a mixed thing, at times both a blessing and a curse (since it's also chasing what sells)...
Anyway, now; Indies and smaller labels in western markets are pushing the ridiculous creative boundaries that DC and Marvel had long become accustomed to (honestly they've become a little too comfortable even now), and there's actually quite a few great 'Not From Japan' mangas that from both the US and Europe.
Then, unless you can access everything that's available in Japan, you are getting only what they consider good/lucrative enough to translate.
And... That's most of what I know about it.
Recently most of the good stories I've been experiencing have been from various Japanese medias, and I'm sure that's partly why Tentacles thinks such. But I do know that there's lots of great works from Western creatives as well.
And now I'm guilty of talking about the Off-point more then the main point.