He formats dates, how else would he look like?

Lithuania, Hungary, Japan represent

Based

Being able to sort numerically and have it also be in chronological order is sooo cool.

ISO 8601!

yep… this or dd.mm.yyyy (for texts)

Please use any kind of separation character or I'm gonna lose my mind

I see the duality in this but I still think both are valid. When telling the time, there's usually no point in including the seconds since they'll have changed before you finish saying the whole thing anyway. In spoken word IMO it makes sense to go from more specific to less specific, and even not include extra parts sometimes (e. g. "today is the 3rd" when it's expected to know the month and, well, year from context, or "it's half past" to someone whom you've told the time a couple of minutes ago).

As for why it's better:

1. It's in sort order. Even if you use it for things that don't understand dates, they sort properly because the day is the last part, month is the middle part, and year is the first part. If you include hours, minutes or seconds, the sort order is still preserved.
2. Speaking of things that don't understand dates, because there are no slashes, you can easily use it in file names, directories, and anything else that treats slash as a special character. In addition, if you include the time part, because it uses "T" to separate the date and time, it doesn't use a space, so once again it can be easily used anywhere where a space might cause issues.

ISO 8601

YYYY-MM-DD

I became an evangelist for YYYY-MM-DD format once I had to deal with a legal battle that had multiple years of documentary evidence. I sorely regretted my choice of naming files when I had to wade through a heckton of upsetting reminders. It got a lot easier when I renamed everything according to YYYY-MM-DD (and the lawyers probably appreciated it too)

I like YYYY-MM-DD because then I don't have to figure out half the time if they used MM-DD-YYYY or if they were sane.

Your complaints are confusing.