Long, long ago, after looking at the skulk's snout and noticing how its rather pointed, and not flat like the view from inside shows, and then after playing with one of the Aliens model packs for a while, using the much less wide mouth parts, I thought "Hey, why isn't the skulk teeth model pointed like it's snout is supposed to be? And hey, its easier to kill people now because I subconsciously force myself to bring the model area, which is also the same specific area as where the bite hits, directly onto my target. This could be good for people!".
I posted said idea in the NS forums a short while after that long, long ago, but the idea was shot down because of that little subconscious model pointing thing, people griped that it gives people who use it an "unfair advantage" and similar overly-used gripes.
Using their same logic, this crosshair should not be allowed because it shows people where to aim specifically, and would give the user an "unfair advantage".