Imagine my dismay when I saw my carefully crafted problems posted on Glass Door. So, I made dozens of Glass Door accounts and posted the hardest, most bizarre, and occasionally literally impossible to answer questions on my company's Glass Door page to drown out the real questions posted there in a sea of insanity. Hope you liked it!
A candidate has to decide how to spend their time and which companies to pursue, so filtering out companies that have clearly-crazy interview procedures is a decent way to optimize.
Nonsense. Have you ever even tried? ;)
Seriously, though, I see your point, but I'm still pretty satisfied with what I've done. If candidates who read interview questions are self-filtering out of our interview process, I count that as a win. Better to miss out on a good candidate than hire a bad a bad one.