You'd be surprised at how big of an effect "trivial" mitigations like this have when you're defending against what amounts to a sea of script kiddies. With a p

You'd be surprised at how big of an effect "trivial" mitigations like this have when you're defending against what amounts to a sea of script kiddies. With a problem like this eliminating 80% of attackers gives you 80% of the benefit, it's not an all or nothing thing.