The people on Jackpoint aren't white hats, with the possible exception of /dev/grrl, Netcat, and the late Fatima. But other than Clockwork, none of them are raging bigots. This isn't like Shadowland, where everyone can come in and say their piece. It is invitation only (mostly), and the general consensus is that twisted hatemonkeys of spite tend to be bad for the health of the network.
But really, I don't see how you can say the Jackpointers are white hats. Skipping past easy examples like Kane and Puck, there's Sticks (no qualms about delivering escaped bunraku girls back to the Yaks), Black Mamba (ill-tempered merc), Ma'fan (thief who does it for the thrill), Aufheben (radical neo-Anarchist), Ecotope (radical eco-terrorist), Orbital DK (runs a black data haven), Hannibelle (works with Tamanous), and I could go on. They aren't white hats. Not by a long shot.