2024-01-02: Site is back on track, self-hosted on a rpi because you get the Internet you fund.
2025-02-06: Oh well, some power grid issues caused the rpi to reboot, I really should configure uwsgi to restart automatically --'

18989b1d-99b5-455b-841c-ab7c74e4ddfc
%USERPROFILE%\Videos

18989b1d-99b5-455b-841c-ab7c74e4ddfc %USERPROFILE%\Videos

Videos

GUID           	{18989B1D-99B5-455B-841C-AB7C74E4DDFC}
Display Name   	Videos
Folder Type    	PERUSER
Default Path   	%USERPROFILE%\Videos
CSIDL          	CSIDL_MYVIDEO
Legacy Display Name	My Videos
Legacy Default Path	%USERPROFILE%\My Documents\My Videos 

from https://msdn.microsoft.com/en-us/library/windows/desktop/dd378457(v=vs.85).aspx
0 KNOWNFOLDERID push
FOLDERID_Videos

GUID           	{18989B1D-99B5-455B-841C-AB7C74E4DDFC}
Display Name   	Videos
Folder Type    	PERUSER
Default Path   	%USERPROFILE%\Videos
CSIDL          	CSIDL_MYVIDEO
Legacy Display Name	My Videos
Legacy Default Path	%USERPROFILE%\My Documents\My Videos 

from https://msdn.microsoft.com/en-us/library/windows/desktop/dd378457(v=vs.85).aspx
0 KNOWNFOLDERID push
Seen in MS-{GPFR}

Counts : MS-GPFR:1
-1 MS specs regex push
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\FolderDescriptions

Windows Vista Registry
object: reg-subkey
name: None
key: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\FolderDescriptions

from Mikołaj Zalewski's http://mikolajapp2.appspot.com - reg-vista.xml
0 autopush - reg-vista
wine/dlls/shell32/tests/shellpath.c:1251

"::{59031a47-3f72-44a7-89c5-5595fe6b30ee}\\{18989B1D-99B5-455B-841C-AB7C74E4DDFC}\0shell:::{20D04FE0-3AEA-1069-A2D8-08002B30309D}\\::{A0953C92-50DC-43BF-BE83-3742FED03C9C}\0\0", /* win8 */
in wine/dlls/shell32/tests/shellpath.c:1251
-2 wine
reactos/modules/rostests/winetests/shell32/shellpath.c:1840

"::{59031a47-3f72-44a7-89c5-5595fe6b30ee}\\{18989B1D-99B5-455B-841C-AB7C74E4DDFC}\0shell:::{20D04FE0-3AEA-1069-A2D8-08002B30309D}\\::{A0953C92-50DC-43BF-BE83-3742FED03C9C}\0\0", /* win8 */
in reactos/modules/rostests/winetests/shell32/shellpath.c:1840
-2 reactos
Include/10.0.16299.0/um/KnownFolders.h:187

// {18989B1D-99B5-455B-841C-AB7C74E4DDFC}
in Include/10.0.16299.0/um/KnownFolders.h:187
-2
%USERPROFILE%\Videos

Some UserAssist key, probably ROT13 encoded as {18989O1Q-99O5-455O-841P-NO7P74R4QQSP}
from https://www.aldeid.com/wiki/Windows-userassist-keys
1 autopush - aldeid-userassist