1 - why the fuck would you wan't to know that?
OP registered on July 26, 2020, has 13 posts, and I don't remember seeing any of them. If this question was being asked by someone who'd been around longer (like maybe by at least a year), then I wouldn't have suspicions about there being a wolf in sheep's clothes lurking about. It's reasonable to be curious about something like what OP asked, but there's no way a newbie is going to get even very general personal info about any members here just by asking.
2 - most of this is easy enough to find out by yourself. Do the job if you really want to know.
I don't think it would be an easy job at all, unless a DT member posts on a local board, but even then that doesn't mean they live in that country. So unless all of them have posted what country they're from in previous posts, I think it'd be very difficult to figure it out easily--and they could be lying anyway in order to increase their privacy.
But yeah, OP....not a good question to be asking on a bitcoin forum, especially at your rank.