how do i find a user's steam id using community creations?

[setho123113]

hello again, i have a question. how do i pull up a steam id using community creations? because i want to message a creator of a CAW that i want re-uploaded. here's a picture of an example. 

thanks, Setho123113

[Cave Waverider]

I'd assume what it says under Creator is the nickname. You should be able to search for users via nickname on Steam friends and message them (except if they don't accept messages).