I wonder if companies who attempt to give aptitude+styles tests to potential hires know/care how many people it drives away? The job market is too good to spend 2-3 hours solving visual logic puzzles and ranking arbitrary statements about oneself (for me at least).

depends on the company i guess....i doubt the big guys really care that much. Especially with the total comp they're throwing at people these days.

they know people will jump when they say so

Hit the nail on the head I think. Misc trading firm with high total comp. The thing is, two competitors didn't require that before offers. Spending 2-3 hours unpaid for a similar offer for a similar job seems strictly worse.