[gwbas1c]

Agree, I'd like to see more about traps.

I've seen some, in job descriptions, that basically say, "When applying, make sure to tell us why you love [some topic related to the job]".

When trying to hire, it's always a torrent of unqualified candidates and hunting for qualified candidates. No filter is 100% perfect; but broad filters against someone who didn't take 10 minutes to read the job description carefully is useful.

[JAlexoid]

You don't need a trap for that. All you have to do is request some particular piece of information as part of the initial application. Setting a pointless trap(ex change the name on your resume) is a stupid move.