There is not mine id in Steam\userdata folder

[Fluffy Pussy]

I'd want to put an autoexec.cfg for CS:GO to my steam profile folder so it would run only for me. I've found out my steam id and go to the Steam\userdata folder and there was no folder with mine id. Instead of mine id there is folder with some other user's id appearing each time I logged in to my Steam account (I've checked this by deleting all folders from userdata folder and logging in to my acc).
http://images.akamai.steamusercontent.com/ugc/311118613865441085/A9B25C287C5E4BA1430D3647BFF4AA7105522AD3/
There is also was not folder with id 730 (CS:GO steam app id) in that folder, but when I create that 730 folder and put my autoexec.cfg in local\cfg inside of it, I have that autoexec working.
So after all I have succeed in what I wanted (working autoexec in CS:GO), but I'm really confused with that folder that have other user's SteamID name. Why this happened, and how to fix? Any suggestions?

[vTragix-]

I have the same problem but I have four different steam id's in my userdate folder