Because it's a conditional jailbreak. It's not a simple, one-clicker like blackra1n, and a lot of people will get confused on wether or not their iPhones are eligible for the sn0wbreeze update.
As this forum proves, just because they jailbroke their phone with blackra1n doesn't mean that they're tech savvy.
The majority of jailbreakers are novice. Then there are people, like us, who are intermediaries, and then the experts who are the people who actually hack and develope for the iPhone.
I'd say in my experience, 85% of the population are novices.