I think part of the problem of running into "gaper" skiers is anyone can go down the hill the first day using the trusty pizza wedge. They then take this trusty technique across any and all runs they come across. Many of which a beginner boarder wouldn't dare look at cause they're falling on their ass every other falling leaf.
So you end up with a bunch of "tourist" skiers on trails they shouldn't be on who have no idea about basic etiquette and ruin everyone's day.
And ugh, I hate the boarders Snowolf pointed out who just point their nose downhill yet don't look like they're in control. So many times I've thought, "If there was anyone sitting just below that crest, out of their sight. They'd be dead right now...".