Heyo Malakhglitch;

Pardon for taking, uh, several months to get back to you. That's just how I roll~
It is really quite awful, I know.

ANYWAY; I've plugged in your code straight from here and into the current update. Sadly, it brings us back to the original issue with this mod; the weird name and appearing at the very bottom of the list.

Further insight would be appreciated, it you don't mind the mid-17th Century letter writing timescale, which I promise not to let happen again...

Your namelist appears at the bottom of the list because it's alphabetically sorted and every vanilla list starts with letters before T.

The reason the first letter in your namelist's name is T, is because of line 4 in common\name_lists\1-The-Culture.txt.txt. That line says:
when it should say
although personally I would recommend changing it to just start with T in all cases, since alphabetical order will help people find it.

Also, you will notice that your file is named 1-The-Culture.txt.txt when it should be 1-The-Culture.txt. I don't believe this breaks the mod in this case, but having two file extensions is something you should generally avoid. There is a setting in the View menu of Windows Explorer to always show file extensions, which will help you spot things like this.

I'll do some fiddling around again.