I think the comment you quoted at least referred to all that except the nosebleed comment (8,500-10,500, nosebleed?)I don't like climbing to nose-bleed altitudes unless I've got a good reason, like a nice fat tailwind, or terrain.
Flying over the class B isn't that big a deal. But, keep in mind, ATC still uses that thinner air up there. Take a look at the VFR flyway chart and check out the altitudes posted on the various arrival and departure corridors. Also, check out the gaggle of DPs and STARS listed for that class B.