To me, it's the people who want to ski park, but don't have the cajones to do it. Hence why, we've all pretty much been there. You know, the people who ski up to a box/rail, and go off the jump but just jump to the side of the rail. They wanna hit it, but they just can't bring themselves to do it (but hey, maybe they ARE sizing it up and their speed and they'll hit it next time).
Also, people who chronically case jumps.. The people who haven't figured out that you're better off fallling on the landing than casing. And obviously, people who just don't understand how to stay out of peoples way in the park.
A lot of people here say people who dress up all radically, 6XL, bright colors, talk shit... I wouldn't call that gaper... I really don't know the word for them... all I know is that in my judgemental ass mind, I view those people as the ones who probably don't have jobs (hence why they can be good) and their parents probably buy them their shit.