Who the fuck snorts it vertical ive snorted and seen snorted alot of shit and never seen that. It must be a gay thing like if you have your right ear pierced instead of the left your gay.
Are you sure you guys know what horizantal means? As in left to right as opposed to up and down. I think that 90% of people do vertical lines. Think about it...someone splits out 4 lines...they're gonna be vertical. None the less, after thinking about it (& trying both ways in the last month), horizantal is definitely easier.