Ohhh yup yup! It is most different on JP for how others behave or approach the many jobs. JP tend to play more safe or less aggressive for most things because we value clear chance over clear speed. Though that does not mean clear slow it only means safe strats and not too many wipes, preferably one shot clear especially when farming anything.
The tank will probably test with first pull then pull appropriately as to not cause wipes by over pulling. For me despite nationality I always go cray cray so can not say for all JP!

I always play reckless though in all games even Dark Souls so I am most likely exception.
For healer staying behind and no one pulling for the tank they are being courteous. This does not mean they are not displeased though! They are simply far far less likely to speak about it, you will have to trust me.
For the other bits about tank I cannot say. I will check JP forum sometime to see, I have not been on either for months until recently.
Aye aye indeed! I have been keeping separate screenshots for each roulette and type because for some unknown reason others seem reluctant to believe me. Not only reluctant but downright passive aggressive at the times about this! Why would I lie about queue times..? How does this gain me anything? I know how long my queues take.
I am on Primal data center and cannot speak for yours. This does seem like good luck though or everyone on this end has extraordinarily bad luck. Keep in the mind that the 12 - 20 minutes is the
average for us, the exception is five minutes. There are always exceptions and outliers in all data sets.